3(x+4)=x+7

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Solution for 3(x+4)=x+7 equation:


Simplifying
3(x + 4) = x + 7

Reorder the terms:
3(4 + x) = x + 7
(4 * 3 + x * 3) = x + 7
(12 + 3x) = x + 7

Reorder the terms:
12 + 3x = 7 + x

Solving
12 + 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.
12 + 3x + -1x = 7 + x + -1x

Combine like terms: 3x + -1x = 2x
12 + 2x = 7 + x + -1x

Combine like terms: x + -1x = 0
12 + 2x = 7 + 0
12 + 2x = 7

Add '-12' to each side of the equation.
12 + -12 + 2x = 7 + -12

Combine like terms: 12 + -12 = 0
0 + 2x = 7 + -12
2x = 7 + -12

Combine like terms: 7 + -12 = -5
2x = -5

Divide each side by '2'.
x = -2.5

Simplifying
x = -2.5

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