7-2z=-1

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Solution for 7-2z=-1 equation: 


Simplifying
7 + -2z = -1

Solving
7 + -2z = -1

Solving for variable 'z'.

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

Add '-7' to each side of the equation.
7 + -7 + -2z = -1 + -7

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

Combine like terms: -1 + -7 = -8
-2z = -8

Divide each side by '-2'.
z = 4

Simplifying
z = 4

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