4-x=x+7

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Solution for 4-x=x+7 equation:


Simplifying
4 + -1x = x + 7

Reorder the terms:
4 + -1x = 7 + x

Solving
4 + -1x = 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.
4 + -1x + -1x = 7 + x + -1x

Combine like terms: -1x + -1x = -2x
4 + -2x = 7 + x + -1x

Combine like terms: x + -1x = 0
4 + -2x = 7 + 0
4 + -2x = 7

Add '-4' to each side of the equation.
4 + -4 + -2x = 7 + -4

Combine like terms: 4 + -4 = 0
0 + -2x = 7 + -4
-2x = 7 + -4

Combine like terms: 7 + -4 = 3
-2x = 3

Divide each side by '-2'.
x = -1.5

Simplifying
x = -1.5

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