12+7=x+2x+4

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Solution for 12+7=x+2x+4 equation:


Simplifying
12 + 7 = x + 2x + 4

Combine like terms: 12 + 7 = 19
19 = x + 2x + 4

Reorder the terms:
19 = 4 + x + 2x

Combine like terms: x + 2x = 3x
19 = 4 + 3x

Solving
19 = 4 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
19 + -3x = 4 + 3x + -3x

Combine like terms: 3x + -3x = 0
19 + -3x = 4 + 0
19 + -3x = 4

Add '-19' to each side of the equation.
19 + -19 + -3x = 4 + -19

Combine like terms: 19 + -19 = 0
0 + -3x = 4 + -19
-3x = 4 + -19

Combine like terms: 4 + -19 = -15
-3x = -15

Divide each side by '-3'.
x = 5

Simplifying
x = 5

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