-20=-2(2+2z)

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Solution for -20=-2(2+2z) equation:


Simplifying
-20 = -2(2 + 2z)
-20 = (2 * -2 + 2z * -2)
-20 = (-4 + -4z)

Solving
-20 = -4 + -4z

Solving for variable 'z'.

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

Add '4z' to each side of the equation.
-20 + 4z = -4 + -4z + 4z

Combine like terms: -4z + 4z = 0
-20 + 4z = -4 + 0
-20 + 4z = -4

Add '20' to each side of the equation.
-20 + 20 + 4z = -4 + 20

Combine like terms: -20 + 20 = 0
0 + 4z = -4 + 20
4z = -4 + 20

Combine like terms: -4 + 20 = 16
4z = 16

Divide each side by '4'.
z = 4

Simplifying
z = 4

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