7(z-1)-(-6z-8)=12z

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Solution for 7(z-1)-(-6z-8)=12z equation:


Simplifying
7(z + -1) + -1(-6z + -8) = 12z

Reorder the terms:
7(-1 + z) + -1(-6z + -8) = 12z
(-1 * 7 + z * 7) + -1(-6z + -8) = 12z
(-7 + 7z) + -1(-6z + -8) = 12z

Reorder the terms:
-7 + 7z + -1(-8 + -6z) = 12z
-7 + 7z + (-8 * -1 + -6z * -1) = 12z
-7 + 7z + (8 + 6z) = 12z

Reorder the terms:
-7 + 8 + 7z + 6z = 12z

Combine like terms: -7 + 8 = 1
1 + 7z + 6z = 12z

Combine like terms: 7z + 6z = 13z
1 + 13z = 12z

Solving
1 + 13z = 12z

Solving for variable 'z'.

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

Add '-12z' to each side of the equation.
1 + 13z + -12z = 12z + -12z

Combine like terms: 13z + -12z = 1z
1 + 1z = 12z + -12z

Combine like terms: 12z + -12z = 0
1 + 1z = 0

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

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

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

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

Simplifying
z = -1

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