90=-45z

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Solution for 90=-45z equation:


Simplifying
90 = -45z

Solving
90 = -45z

Solving for variable 'z'.

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

Add '45z' to each side of the equation.
90 + 45z = -45z + 45z

Combine like terms: -45z + 45z = 0
90 + 45z = 0

Add '-90' to each side of the equation.
90 + -90 + 45z = 0 + -90

Combine like terms: 90 + -90 = 0
0 + 45z = 0 + -90
45z = 0 + -90

Combine like terms: 0 + -90 = -90
45z = -90

Divide each side by '45'.
z = -2

Simplifying
z = -2

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