2(z-4)=4(z+7)-18

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Solution for 2(z-4)=4(z+7)-18 equation:


Simplifying
2(z + -4) = 4(z + 7) + -18

Reorder the terms:
2(-4 + z) = 4(z + 7) + -18
(-4 * 2 + z * 2) = 4(z + 7) + -18
(-8 + 2z) = 4(z + 7) + -18

Reorder the terms:
-8 + 2z = 4(7 + z) + -18
-8 + 2z = (7 * 4 + z * 4) + -18
-8 + 2z = (28 + 4z) + -18

Reorder the terms:
-8 + 2z = 28 + -18 + 4z

Combine like terms: 28 + -18 = 10
-8 + 2z = 10 + 4z

Solving
-8 + 2z = 10 + 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.
-8 + 2z + -4z = 10 + 4z + -4z

Combine like terms: 2z + -4z = -2z
-8 + -2z = 10 + 4z + -4z

Combine like terms: 4z + -4z = 0
-8 + -2z = 10 + 0
-8 + -2z = 10

Add '8' to each side of the equation.
-8 + 8 + -2z = 10 + 8

Combine like terms: -8 + 8 = 0
0 + -2z = 10 + 8
-2z = 10 + 8

Combine like terms: 10 + 8 = 18
-2z = 18

Divide each side by '-2'.
z = -9

Simplifying
z = -9

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