15-7X=30+5X

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Solution for 15-7X=30+5X equation: 


Simplifying
15 + -7X = 30 + 5X

Solving
15 + -7X = 30 + 5X

Solving for variable 'X'.

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

Add '-5X' to each side of the equation.
15 + -7X + -5X = 30 + 5X + -5X

Combine like terms: -7X + -5X = -12X
15 + -12X = 30 + 5X + -5X

Combine like terms: 5X + -5X = 0
15 + -12X = 30 + 0
15 + -12X = 30

Add '-15' to each side of the equation.
15 + -15 + -12X = 30 + -15

Combine like terms: 15 + -15 = 0
0 + -12X = 30 + -15
-12X = 30 + -15

Combine like terms: 30 + -15 = 15
-12X = 15

Divide each side by '-12'.
X = -1.25

Simplifying
X = -1.25

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