5X+-15=90

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Solution for 5X+-15=90 equation: 


Simplifying
5X + -15 = 90

Reorder the terms:
-15 + 5X = 90

Solving
-15 + 5X = 90

Solving for variable 'X'.

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

Add '15' to each side of the equation.
-15 + 15 + 5X = 90 + 15

Combine like terms: -15 + 15 = 0
0 + 5X = 90 + 15
5X = 90 + 15

Combine like terms: 90 + 15 = 105
5X = 105

Divide each side by '5'.
X = 21

Simplifying
X = 21

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