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Popular >

expand-4(-y+5z=7)

Solution

expand

- 4 (- y + 5 z = 7)

Solution

4 y - 20 z = 7

Solution steps

- 4 (- y + 5 z = 7)

= - 4 (- y + 5 \cdot 7 = z)

Apply the distributive law:

a (b + c) = ab + a c

a = - 4, b = - y, c = 5 z = 7

- 4 (- y) + (- 4) \cdot 5 z = 7

Apply minus-plus rules

- (- a) = a, + (- a) = - a

4 y - 4 \cdot 5 z = 7

Expand

4 y - 4 \cdot 5 z : 4 y - 20 z

4 y - 20 z = 7

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Frequently Asked Questions (FAQ)

What is expand-4(-y+5z=7) ?
The solution to expand-4(-y+5z=7) is 4y-20z=7