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

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


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

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

Combine like terms: 4 + -7 = -3
-3 + 2x + x = 3(x + -7)

Combine like terms: 2x + x = 3x
-3 + 3x = 3(x + -7)

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

Add '-3x' to each side of the equation.
-3 + 3x + -3x = -21 + 3x + -3x

Combine like terms: 3x + -3x = 0
-3 + 0 = -21 + 3x + -3x
-3 = -21 + 3x + -3x

Combine like terms: 3x + -3x = 0
-3 = -21 + 0
-3 = -21

Solving
-3 = -21

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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