3x+42=5x-8

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Solution for 3x+42=5x-8 equation:


Simplifying
3x + 42 = 5x + -8

Reorder the terms:
42 + 3x = 5x + -8

Reorder the terms:
42 + 3x = -8 + 5x

Solving
42 + 3x = -8 + 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.
42 + 3x + -5x = -8 + 5x + -5x

Combine like terms: 3x + -5x = -2x
42 + -2x = -8 + 5x + -5x

Combine like terms: 5x + -5x = 0
42 + -2x = -8 + 0
42 + -2x = -8

Add '-42' to each side of the equation.
42 + -42 + -2x = -8 + -42

Combine like terms: 42 + -42 = 0
0 + -2x = -8 + -42
-2x = -8 + -42

Combine like terms: -8 + -42 = -50
-2x = -50

Divide each side by '-2'.
x = 25

Simplifying
x = 25

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