3+x=2x-4

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Solution for 3+x=2x-4 equation:


Simplifying
3 + x = 2x + -4

Reorder the terms:
3 + x = -4 + 2x

Solving
3 + x = -4 + 2x

Solving for variable 'x'.

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

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

Combine like terms: x + -2x = -1x
3 + -1x = -4 + 2x + -2x

Combine like terms: 2x + -2x = 0
3 + -1x = -4 + 0
3 + -1x = -4

Add '-3' to each side of the equation.
3 + -3 + -1x = -4 + -3

Combine like terms: 3 + -3 = 0
0 + -1x = -4 + -3
-1x = -4 + -3

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

Divide each side by '-1'.
x = 7

Simplifying
x = 7

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