7+3x=-5-x

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Solution for 7+3x=-5-x equation:


Simplifying
7 + 3x = -5 + -1x

Solving
7 + 3x = -5 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
7 + 3x + x = -5 + -1x + x

Combine like terms: 3x + x = 4x
7 + 4x = -5 + -1x + x

Combine like terms: -1x + x = 0
7 + 4x = -5 + 0
7 + 4x = -5

Add '-7' to each side of the equation.
7 + -7 + 4x = -5 + -7

Combine like terms: 7 + -7 = 0
0 + 4x = -5 + -7
4x = -5 + -7

Combine like terms: -5 + -7 = -12
4x = -12

Divide each side by '4'.
x = -3

Simplifying
x = -3

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