3x+42=x+34

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Solution for 3x+42=x+34 equation:


Simplifying
3x + 42 = x + 34

Reorder the terms:
42 + 3x = x + 34

Reorder the terms:
42 + 3x = 34 + x

Solving
42 + 3x = 34 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
42 + 3x + -1x = 34 + x + -1x

Combine like terms: 3x + -1x = 2x
42 + 2x = 34 + x + -1x

Combine like terms: x + -1x = 0
42 + 2x = 34 + 0
42 + 2x = 34

Add '-42' to each side of the equation.
42 + -42 + 2x = 34 + -42

Combine like terms: 42 + -42 = 0
0 + 2x = 34 + -42
2x = 34 + -42

Combine like terms: 34 + -42 = -8
2x = -8

Divide each side by '2'.
x = -4

Simplifying
x = -4

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