7+z=8z-13

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Solution for 7+z=8z-13 equation:


Simplifying
7 + z = 8z + -13

Reorder the terms:
7 + z = -13 + 8z

Solving
7 + z = -13 + 8z

Solving for variable 'z'.

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

Add '-8z' to each side of the equation.
7 + z + -8z = -13 + 8z + -8z

Combine like terms: z + -8z = -7z
7 + -7z = -13 + 8z + -8z

Combine like terms: 8z + -8z = 0
7 + -7z = -13 + 0
7 + -7z = -13

Add '-7' to each side of the equation.
7 + -7 + -7z = -13 + -7

Combine like terms: 7 + -7 = 0
0 + -7z = -13 + -7
-7z = -13 + -7

Combine like terms: -13 + -7 = -20
-7z = -20

Divide each side by '-7'.
z = 2.857142857

Simplifying
z = 2.857142857

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