-4(-5-2z)=9z

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Solution for -4(-5-2z)=9z equation:


Simplifying
-4(-5 + -2z) = 9z
(-5 * -4 + -2z * -4) = 9z
(20 + 8z) = 9z

Solving
20 + 8z = 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
20 + 8z + -9z = 9z + -9z

Combine like terms: 8z + -9z = -1z
20 + -1z = 9z + -9z

Combine like terms: 9z + -9z = 0
20 + -1z = 0

Add '-20' to each side of the equation.
20 + -20 + -1z = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -1z = 0 + -20
-1z = 0 + -20

Combine like terms: 0 + -20 = -20
-1z = -20

Divide each side by '-1'.
z = 20

Simplifying
z = 20

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