Demystify Equations, Expressions, and Inequalitie with Expert Help

High School
Algebra
Pre-Algebra
Equations, expressions, and inequalitie

Recent questions in Equations, expressions, and inequalitie

Carly Cannon 2022-07-02

I have the following equations and inequalities:
$1 = A^{'} + B^{'}$
$1 = A + B + C$
$A \leq A^{'}$
$B \leq B^{'}$
All variables are bounded below by zero and above by one.
I wonder if I can find an analytic expression for the upper and lower bounds for the difference $A^{'} (1 - C) - A$

Ellen Chang 2022-07-02

How do you solve and graph $- x - 3 < - 5$ ?

Grimanijd 2022-07-02

How do you solve $4 \geq \frac{x}{- 2}$ ?

kramberol 2022-07-02

How do you solve the inequality $y - 6 > - 19$ ?

Sam Hardin 2022-07-01

How do you solve $21 (18 - x) = 15 (5 x + 1)$ ?

grenivkah3z 2022-07-01

How do you simplify $\frac{x^{9} {(2 x)}^{4}}{x^{3}}$ ?

myntfalskj4 2022-07-01

How do you solve $107 \div e > 3$ ?

Jovany Clayton 2022-07-01

How do you solve $x - 3 > - 9$ ?

Ayanna Trujillo 2022-07-01

Describe
$S = {(u, t) \in R^{n} \times R : u^{'} x \leq t for all x \in R^{n} with A x \leq b, u^{'} x \geq t for all x \in R^{n} with C x \leq d}$
using finitely many linear inequalities and equations.
It's easy to show S is convex. We can describe S as
$S = {(u, t) \in R^{n} \times R : sup_{x \in R^{n}, A x \leq b} u^{'} x \leq t \leq inf_{x \in R^{n}, C x \leq d} u^{'} x} .$
Taking the supremum and infimum over infinitely many expressions is not allowed in the finitely many linear inequalities and equations. The LHS and RHS are solutions to linear programming problems and the hint is to use strong duality, but I couldn't find a way to make the number of conditions finite.

Ryan Robertson 2022-06-30

You have $60.00 in your wallet and want to buy some new CDs. If the CDs are $11.00 each, what number of CDs, x, can you buy? How do you write and solve an inequality?

slijmigrd 2022-06-30

How do you solve $8 + 10 + x \leq 51$ ?

rjawbreakerca 2022-06-30

How do you solve $\frac{m}{3} - 3 < \frac{4}{3} - \frac{m}{2}$ ?

Rebecca Villa 2022-06-30

How do you solve $- \frac{c}{6} \geq 7$ ?

sedeln5w 2022-06-30

Suppose you had d dollars in your bank account. You spent $21 but have at least $53 left. How much money did you have initially? How do you write and solve an inequality that represents this situation?

grenivkah3z 2022-06-29

How do you solve $n - 19 \leq - 28$ ?

Agostarawz 2022-06-29

How do you solve and graph $\frac{1}{3} n \leq 9$ ?

anginih86 2022-06-29

How do you solve and graph the solution of $11 \leq p + 4$ ?

vittorecostao1 2022-06-29

How do you solve and write the following in interval notation: $\frac{x}{2} \leq - 3$ and $x - 5 < 2$ ?

polivijuye 2022-06-28

How do you solve $\frac{1}{2} z < 20$ ?

Villaretq0 2022-06-28

How do you write an inequality and solve given "three fourths of a number decreased by nine is at least forty two"?

Contrary to a popular belief, equation in math also contains things like inequalities and expressions that require logic and verbal explanations. This is where equation help becomes useful as you look at the answers below. See equation problems submitted by students like you and explore the answers. It will help you to understand the logic as you approach equation algebra and study expressions examples. These are not as complex as they may seem once you learn how to connect expressions and equations and understand them as a finite combination of symbols, depending on use.

Pre-Algebra

Equations, Expressions, and Inequalities Q&A: Get Expert Help and Learn from Real-World Examples