20z+90=180

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Solution for 20z+90=180 equation: 


Simplifying
20z + 90 = 180

Reorder the terms:
90 + 20z = 180

Solving
90 + 20z = 180

Solving for variable 'z'.

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

Add '-90' to each side of the equation.
90 + -90 + 20z = 180 + -90

Combine like terms: 90 + -90 = 0
0 + 20z = 180 + -90
20z = 180 + -90

Combine like terms: 180 + -90 = 90
20z = 90

Divide each side by '20'.
z = 4.5

Simplifying
z = 4.5

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