(7X-8)=90

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Solution for (7X-8)=90 equation: 


Simplifying
(7X + -8) = 90

Reorder the terms:
(-8 + 7X) = 90

Remove parenthesis around (-8 + 7X)
-8 + 7X = 90

Solving
-8 + 7X = 90

Solving for variable 'X'.

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

Add '8' to each side of the equation.
-8 + 8 + 7X = 90 + 8

Combine like terms: -8 + 8 = 0
0 + 7X = 90 + 8
7X = 90 + 8

Combine like terms: 90 + 8 = 98
7X = 98

Divide each side by '7'.
X = 14

Simplifying
X = 14

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