5z+9+2z-3=90

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Solution for 5z+9+2z-3=90 equation:


Simplifying
5z + 9 + 2z + -3 = 90

Reorder the terms:
9 + -3 + 5z + 2z = 90

Combine like terms: 9 + -3 = 6
6 + 5z + 2z = 90

Combine like terms: 5z + 2z = 7z
6 + 7z = 90

Solving
6 + 7z = 90

Solving for variable 'z'.

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

Add '-6' to each side of the equation.
6 + -6 + 7z = 90 + -6

Combine like terms: 6 + -6 = 0
0 + 7z = 90 + -6
7z = 90 + -6

Combine like terms: 90 + -6 = 84
7z = 84

Divide each side by '7'.
z = 12

Simplifying
z = 12

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