255-3x=42x+15

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Solution for 255-3x=42x+15 equation:


Simplifying
255 + -3x = 42x + 15

Reorder the terms:
255 + -3x = 15 + 42x

Solving
255 + -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.
255 + -3x + -42x = 15 + 42x + -42x

Combine like terms: -3x + -42x = -45x
255 + -45x = 15 + 42x + -42x

Combine like terms: 42x + -42x = 0
255 + -45x = 15 + 0
255 + -45x = 15

Add '-255' to each side of the equation.
255 + -255 + -45x = 15 + -255

Combine like terms: 255 + -255 = 0
0 + -45x = 15 + -255
-45x = 15 + -255

Combine like terms: 15 + -255 = -240
-45x = -240

Divide each side by '-45'.
x = 5.333333333

Simplifying
x = 5.333333333

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