90=8-2z

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Solution for 90=8-2z equation:


Simplifying
90 = 8 + -2z

Solving
90 = 8 + -2z

Solving for variable 'z'.

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

Add '2z' to each side of the equation.
90 + 2z = 8 + -2z + 2z

Combine like terms: -2z + 2z = 0
90 + 2z = 8 + 0
90 + 2z = 8

Add '-90' to each side of the equation.
90 + -90 + 2z = 8 + -90

Combine like terms: 90 + -90 = 0
0 + 2z = 8 + -90
2z = 8 + -90

Combine like terms: 8 + -90 = -82
2z = -82

Divide each side by '2'.
z = -41

Simplifying
z = -41

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