90-7x=83

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Solution for 90-7x=83 equation: 


Simplifying
90 + -7x = 83

Solving
90 + -7x = 83

Solving for variable 'x'.

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

Add '-90' to each side of the equation.
90 + -90 + -7x = 83 + -90

Combine like terms: 90 + -90 = 0
0 + -7x = 83 + -90
-7x = 83 + -90

Combine like terms: 83 + -90 = -7
-7x = -7

Divide each side by '-7'.
x = 1

Simplifying
x = 1

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