-15z-40=23-8z

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Solution for -15z-40=23-8z equation:


Simplifying
-15z + -40 = 23 + -8z

Reorder the terms:
-40 + -15z = 23 + -8z

Solving
-40 + -15z = 23 + -8z

Solving for variable 'z'.

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

Add '8z' to each side of the equation.
-40 + -15z + 8z = 23 + -8z + 8z

Combine like terms: -15z + 8z = -7z
-40 + -7z = 23 + -8z + 8z

Combine like terms: -8z + 8z = 0
-40 + -7z = 23 + 0
-40 + -7z = 23

Add '40' to each side of the equation.
-40 + 40 + -7z = 23 + 40

Combine like terms: -40 + 40 = 0
0 + -7z = 23 + 40
-7z = 23 + 40

Combine like terms: 23 + 40 = 63
-7z = 63

Divide each side by '-7'.
z = -9

Simplifying
z = -9

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