3+-2z=7

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Solution for 3+-2z=7 equation: 


Simplifying
3 + -2z = 7

Solving
3 + -2z = 7

Solving for variable 'z'.

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

Add '-3' to each side of the equation.
3 + -3 + -2z = 7 + -3

Combine like terms: 3 + -3 = 0
0 + -2z = 7 + -3
-2z = 7 + -3

Combine like terms: 7 + -3 = 4
-2z = 4

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

Simplifying
z = -2

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