7z+10=9z-2

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Solution for 7z+10=9z-2 equation:


Simplifying
7z + 10 = 9z + -2

Reorder the terms:
10 + 7z = 9z + -2

Reorder the terms:
10 + 7z = -2 + 9z

Solving
10 + 7z = -2 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
10 + 7z + -9z = -2 + 9z + -9z

Combine like terms: 7z + -9z = -2z
10 + -2z = -2 + 9z + -9z

Combine like terms: 9z + -9z = 0
10 + -2z = -2 + 0
10 + -2z = -2

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

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

Combine like terms: -2 + -10 = -12
-2z = -12

Divide each side by '-2'.
z = 6

Simplifying
z = 6

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