What is expand-4(-3x+7=-64) ?

The solution to expand-4(-3x+7=-64) is 12x-28=256

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expand-4(-3x+7=-64)

expand

- 4 (- 3 x + 7 = - 64)

12 x - 28 = 256

Solution steps

- 4 (- 3 x + 7 = - 64)

Distribute parentheses

(- 4) (- 3 x) + (- 4) \cdot 7 = (- 4) (- 64)

Apply minus-plus rules

(- a) (- b) = ab, + (- a) = - a

4 \cdot 3 x - 4 \cdot 7 = 4 \cdot 64

Simplify

4 \cdot 3 x - 4 \cdot 7 = 4 \cdot 64 : 12 x - 28 = 256

12 x - 28 = 256

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