1+3x=-7+x

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Solution for 1+3x=-7+x equation: 


Simplifying
1 + 3x = -7 + x

Solving
1 + 3x = -7 + 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.
1 + 3x + -1x = -7 + x + -1x

Combine like terms: 3x + -1x = 2x
1 + 2x = -7 + x + -1x

Combine like terms: x + -1x = 0
1 + 2x = -7 + 0
1 + 2x = -7

Add '-1' to each side of the equation.
1 + -1 + 2x = -7 + -1

Combine like terms: 1 + -1 = 0
0 + 2x = -7 + -1
2x = -7 + -1

Combine like terms: -7 + -1 = -8
2x = -8

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

Simplifying
x = -4

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