3(x+4)-(x+7)=2x+9

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Solution for 3(x+4)-(x+7)=2x+9 equation: 


Simplifying
3(x + 4) + -1(x + 7) = 2x + 9

Reorder the terms:
3(4 + x) + -1(x + 7) = 2x + 9
(4 * 3 + x * 3) + -1(x + 7) = 2x + 9
(12 + 3x) + -1(x + 7) = 2x + 9

Reorder the terms:
12 + 3x + -1(7 + x) = 2x + 9
12 + 3x + (7 * -1 + x * -1) = 2x + 9
12 + 3x + (-7 + -1x) = 2x + 9

Reorder the terms:
12 + -7 + 3x + -1x = 2x + 9

Combine like terms: 12 + -7 = 5
5 + 3x + -1x = 2x + 9

Combine like terms: 3x + -1x = 2x
5 + 2x = 2x + 9

Reorder the terms:
5 + 2x = 9 + 2x

Add '-2x' to each side of the equation.
5 + 2x + -2x = 9 + 2x + -2x

Combine like terms: 2x + -2x = 0
5 + 0 = 9 + 2x + -2x
5 = 9 + 2x + -2x

Combine like terms: 2x + -2x = 0
5 = 9 + 0
5 = 9

Solving
5 = 9

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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