-15z-(-7z)+6z-(-15)=-13

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Solution for -15z-(-7z)+6z-(-15)=-13 equation:


Simplifying
-15z + -1(-7z) + 6z + -1(-15) = -13

Remove parenthesis around (-7z)
-15z + -1 * -7z + 6z + -1(-15) = -13

Multiply -1 * -7
-15z + 7z + 6z + -1(-15) = -13

Multiply -1 * -15
-15z + 7z + 6z + 15 = -13

Reorder the terms:
15 + -15z + 7z + 6z = -13

Combine like terms: -15z + 7z = -8z
15 + -8z + 6z = -13

Combine like terms: -8z + 6z = -2z
15 + -2z = -13

Solving
15 + -2z = -13

Solving for variable 'z'.

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

Add '-15' to each side of the equation.
15 + -15 + -2z = -13 + -15

Combine like terms: 15 + -15 = 0
0 + -2z = -13 + -15
-2z = -13 + -15

Combine like terms: -13 + -15 = -28
-2z = -28

Divide each side by '-2'.
z = 14

Simplifying
z = 14

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