4z+9+3z-10+90=180

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Solution for 4z+9+3z-10+90=180 equation:


Simplifying
4z + 9 + 3z + -10 + 90 = 180

Reorder the terms:
9 + -10 + 90 + 4z + 3z = 180

Combine like terms: 9 + -10 = -1
-1 + 90 + 4z + 3z = 180

Combine like terms: -1 + 90 = 89
89 + 4z + 3z = 180

Combine like terms: 4z + 3z = 7z
89 + 7z = 180

Solving
89 + 7z = 180

Solving for variable 'z'.

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

Add '-89' to each side of the equation.
89 + -89 + 7z = 180 + -89

Combine like terms: 89 + -89 = 0
0 + 7z = 180 + -89
7z = 180 + -89

Combine like terms: 180 + -89 = 91
7z = 91

Divide each side by '7'.
z = 13

Simplifying
z = 13

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