7z-4=12+3-84

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Solution for 7z-4=12+3-84 equation:


Simplifying
7z + -4 = 12 + 3 + -84

Reorder the terms:
-4 + 7z = 12 + 3 + -84

Combine like terms: 12 + 3 = 15
-4 + 7z = 15 + -84

Combine like terms: 15 + -84 = -69
-4 + 7z = -69

Solving
-4 + 7z = -69

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 = -69 + 4

Combine like terms: -4 + 4 = 0
0 + 7z = -69 + 4
7z = -69 + 4

Combine like terms: -69 + 4 = -65
7z = -65

Divide each side by '7'.
z = -9.285714286

Simplifying
z = -9.285714286

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