125-3x=42x+15

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Solution for 125-3x=42x+15 equation:


Simplifying
125 + -3x = 42x + 15

Reorder the terms:
125 + -3x = 15 + 42x

Solving
125 + -3x = 15 + 42x

Solving for variable 'x'.

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

Add '-42x' to each side of the equation.
125 + -3x + -42x = 15 + 42x + -42x

Combine like terms: -3x + -42x = -45x
125 + -45x = 15 + 42x + -42x

Combine like terms: 42x + -42x = 0
125 + -45x = 15 + 0
125 + -45x = 15

Add '-125' to each side of the equation.
125 + -125 + -45x = 15 + -125

Combine like terms: 125 + -125 = 0
0 + -45x = 15 + -125
-45x = 15 + -125

Combine like terms: 15 + -125 = -110
-45x = -110

Divide each side by '-45'.
x = 2.444444444

Simplifying
x = 2.444444444

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