7z-4=-13+7

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Solution for 7z-4=-13+7 equation:


Simplifying
7z + -4 = -13 + 7

Reorder the terms:
-4 + 7z = -13 + 7

Combine like terms: -13 + 7 = -6
-4 + 7z = -6

Solving
-4 + 7z = -6

Solving for variable 'z'.

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

Add '4' to each side of the equation.
-4 + 4 + 7z = -6 + 4

Combine like terms: -4 + 4 = 0
0 + 7z = -6 + 4
7z = -6 + 4

Combine like terms: -6 + 4 = -2
7z = -2

Divide each side by '7'.
z = -0.2857142857

Simplifying
z = -0.2857142857

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