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

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


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

Reorder the terms:
3(-7 + x) + x = 4x + -9 + 2
(-7 * 3 + x * 3) + x = 4x + -9 + 2
(-21 + 3x) + x = 4x + -9 + 2

Combine like terms: 3x + x = 4x
-21 + 4x = 4x + -9 + 2

Reorder the terms:
-21 + 4x = -9 + 2 + 4x

Combine like terms: -9 + 2 = -7
-21 + 4x = -7 + 4x

Add '-4x' to each side of the equation.
-21 + 4x + -4x = -7 + 4x + -4x

Combine like terms: 4x + -4x = 0
-21 + 0 = -7 + 4x + -4x
-21 = -7 + 4x + -4x

Combine like terms: 4x + -4x = 0
-21 = -7 + 0
-21 = -7

Solving
-21 = -7

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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