Dolly Robinson

2021-09-30

Determine whether the given problem is an equation or an expression. If it is an equation, then solve. If it is an expression, then simplify.

Velsenw

Skilled2021-10-01Added 91 answers

Step 1

Given that:

$\frac{y}{4}+\frac{2y}{5}-\frac{3y}{10}$

It is an expression.

To determine whether the given problem is an equation or expression,

Expression:

An expression is a number, a variable, or a combination of numbers and variables and operation symbols

Equation:

An equation is made up of two expressions connected by an equal (=) sign.

Therefore the given problem is an expression.

Step 2

To solve the given expressions,

L.C.M of 4, 5 and 10 is 20

$\frac{y}{4}+\frac{2y}{5}-\frac{3y}{10}=\frac{5y+4\left(2y\right)-2\left(3y\right)}{20}$

$=\frac{5y+8y-6y}{20}$

$=\frac{7y}{20}$

Given that:

It is an expression.

To determine whether the given problem is an equation or expression,

Expression:

An expression is a number, a variable, or a combination of numbers and variables and operation symbols

Equation:

An equation is made up of two expressions connected by an equal (=) sign.

Therefore the given problem is an expression.

Step 2

To solve the given expressions,

L.C.M of 4, 5 and 10 is 20

$\frac{20b}{{\left(4{b}^{3}\right)}^{3}}$

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