z+1=2z-7

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Solution for z+1=2z-7 equation:


Simplifying
z + 1 = 2z + -7

Reorder the terms:
1 + z = 2z + -7

Reorder the terms:
1 + z = -7 + 2z

Solving
1 + z = -7 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
1 + z + -2z = -7 + 2z + -2z

Combine like terms: z + -2z = -1z
1 + -1z = -7 + 2z + -2z

Combine like terms: 2z + -2z = 0
1 + -1z = -7 + 0
1 + -1z = -7

Add '-1' to each side of the equation.
1 + -1 + -1z = -7 + -1

Combine like terms: 1 + -1 = 0
0 + -1z = -7 + -1
-1z = -7 + -1

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

Divide each side by '-1'.
z = 8

Simplifying
z = 8

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