-7z+2=-13

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Solution for -7z+2=-13 equation: 


Simplifying
-7z + 2 = -13

Reorder the terms:
2 + -7z = -13

Solving
2 + -7z = -13

Solving for variable 'z'.

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

Add '-2' to each side of the equation.
2 + -2 + -7z = -13 + -2

Combine like terms: 2 + -2 = 0
0 + -7z = -13 + -2
-7z = -13 + -2

Combine like terms: -13 + -2 = -15
-7z = -15

Divide each side by '-7'.
z = 2.142857143

Simplifying
z = 2.142857143

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