4(-4z+7)=-20

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Solution for 4(-4z+7)=-20 equation: 


Simplifying
4(-4z + 7) = -20

Reorder the terms:
4(7 + -4z) = -20
(7 * 4 + -4z * 4) = -20
(28 + -16z) = -20

Solving
28 + -16z = -20

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-28' to each side of the equation.
28 + -28 + -16z = -20 + -28

Combine like terms: 28 + -28 = 0
0 + -16z = -20 + -28
-16z = -20 + -28

Combine like terms: -20 + -28 = -48
-16z = -48

Divide each side by '-16'.
z = 3

Simplifying
z = 3

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