z-7=2z-31

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Solution for z-7=2z-31 equation:


Simplifying
z + -7 = 2z + -31

Reorder the terms:
-7 + z = 2z + -31

Reorder the terms:
-7 + z = -31 + 2z

Solving
-7 + z = -31 + 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.
-7 + z + -2z = -31 + 2z + -2z

Combine like terms: z + -2z = -1z
-7 + -1z = -31 + 2z + -2z

Combine like terms: 2z + -2z = 0
-7 + -1z = -31 + 0
-7 + -1z = -31

Add '7' to each side of the equation.
-7 + 7 + -1z = -31 + 7

Combine like terms: -7 + 7 = 0
0 + -1z = -31 + 7
-1z = -31 + 7

Combine like terms: -31 + 7 = -24
-1z = -24

Divide each side by '-1'.
z = 24

Simplifying
z = 24

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