12+3=7z-2

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Solution for 12+3=7z-2 equation:


Simplifying
12 + 3 = 7z + -2

Combine like terms: 12 + 3 = 15
15 = 7z + -2

Reorder the terms:
15 = -2 + 7z

Solving
15 = -2 + 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
15 + -7z = -2 + 7z + -7z

Combine like terms: 7z + -7z = 0
15 + -7z = -2 + 0
15 + -7z = -2

Add '-15' to each side of the equation.
15 + -15 + -7z = -2 + -15

Combine like terms: 15 + -15 = 0
0 + -7z = -2 + -15
-7z = -2 + -15

Combine like terms: -2 + -15 = -17
-7z = -17

Divide each side by '-7'.
z = 2.428571429

Simplifying
z = 2.428571429

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