"Simplify 20−(2×4f)+(2×9)+(7×9)+(7×2f)−(7×6)+11?" solved and explained

Racetovb4j

Answered question

2022-02-02

Simplify

20 - (2 \times 4 f) + (2 \times 9) + (7 \times 9) + (7 \times 2 f) - (7 \times 6) + 11

lofia1r

Beginner2022-02-03Added 15 answers

Step 1
First, expand all the terms within parenthesis paying close attention to the signs both inside and outside the parenthesis:

20 - (2 \times 4 f) + (2 \times 9) + (7 \times 2 f) - (7 \times 6) + 11

20 - 8 f + 18 + 14 f - 41 + 11

Next we can group like terms:

- 8 f + 14 f + 20 + 18 - 42 + 11

Now we can combine like terms:

(- 8 + 14) f + 7

6 f + 7

liofila3w7

Beginner2022-02-04Added 13 answers

Step 1
Given:

20 - (2 \times 4 f) + (2 \times 9) + (7 \times 2 f) - (7 \times 6) + 11

Multiply 2 and 9 to get 18. Multiply 7 and 2 to get 14.

20 - 2 \times 4 f + 18 + 14 f - 7 \times 6 + 11

Multiply 2 and 4 to get 8.

20 - 8 f + 18 + 14 f - 7 \times 6 + 11

Add 20 and 18 to get 38.

38 - 8 f + 14 f - 7 \times 6 + 11

Combine -8f and 14f to get 6f.

38 + 6 f - 7 \times 6 + 11

Multiply 7 and 6 to get 42.

38 + 6 f - 42 + 11

Subtract 42 from 38 to get -4.

- 4 + 6 f + 11

Add -4 and 11 to get 7.

7 + 6 f

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