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Chapter 1: Q72. (page 46)

Simplify each expression.
$- 2 (m - 4 n) - 3 (5 n + 6)$

Short Answer

Expert verified

The answer is $- 2 m - 7 n - 18$ .

Step by step solution

01

– Distributive property of addition.

Apply the distributive property to the given expression.

$- 2 (m) + 2 (4 n) - 3 (5 n) - 3 (6)$

02

– Description of step.

Perform multiplication to the obtained expression in step 1.

$- 2 m + 8 n - 15 n - 18$

03

– Commutative property of addition.

Apply the commutative property of addition to the expression in step 2.

$- 2 m - 7 n - 18$

Therefore, the answer is $鈭� 2 m 鈭� 7 n 鈭� 18$

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