91=8z+19

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Solution for 91=8z+19 equation:


Simplifying
91 = 8z + 19

Reorder the terms:
91 = 19 + 8z

Solving
91 = 19 + 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.
91 + -8z = 19 + 8z + -8z

Combine like terms: 8z + -8z = 0
91 + -8z = 19 + 0
91 + -8z = 19

Add '-91' to each side of the equation.
91 + -91 + -8z = 19 + -91

Combine like terms: 91 + -91 = 0
0 + -8z = 19 + -91
-8z = 19 + -91

Combine like terms: 19 + -91 = -72
-8z = -72

Divide each side by '-8'.
z = 9

Simplifying
z = 9

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