10-z+7=9

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Solution for 10-z+7=9 equation:


Simplifying
10 + -1z + 7 = 9

Reorder the terms:
10 + 7 + -1z = 9

Combine like terms: 10 + 7 = 17
17 + -1z = 9

Solving
17 + -1z = 9

Solving for variable 'z'.

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

Add '-17' to each side of the equation.
17 + -17 + -1z = 9 + -17

Combine like terms: 17 + -17 = 0
0 + -1z = 9 + -17
-1z = 9 + -17

Combine like terms: 9 + -17 = -8
-1z = -8

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

Simplifying
z = 8

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