6z+8-2(2z+20)=18

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Solution for 6z+8-2(2z+20)=18 equation:


Simplifying
6z + 8 + -2(2z + 20) = 18

Reorder the terms:
6z + 8 + -2(20 + 2z) = 18
6z + 8 + (20 * -2 + 2z * -2) = 18
6z + 8 + (-40 + -4z) = 18

Reorder the terms:
8 + -40 + 6z + -4z = 18

Combine like terms: 8 + -40 = -32
-32 + 6z + -4z = 18

Combine like terms: 6z + -4z = 2z
-32 + 2z = 18

Solving
-32 + 2z = 18

Solving for variable 'z'.

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

Add '32' to each side of the equation.
-32 + 32 + 2z = 18 + 32

Combine like terms: -32 + 32 = 0
0 + 2z = 18 + 32
2z = 18 + 32

Combine like terms: 18 + 32 = 50
2z = 50

Divide each side by '2'.
z = 25

Simplifying
z = 25

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