15-4X=85

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Solution for 15-4X=85 equation: 


Simplifying
15 + -4X = 85

Solving
15 + -4X = 85

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 + -4X = 85 + -15

Combine like terms: 15 + -15 = 0
0 + -4X = 85 + -15
-4X = 85 + -15

Combine like terms: 85 + -15 = 70
-4X = 70

Divide each side by '-4'.
X = -17.5

Simplifying
X = -17.5

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