-4x+6x-9=2(x-4)-21

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Solution for -4x+6x-9=2(x-4)-21 equation:


Simplifying
-4x + 6x + -9 = 2(x + -4) + -21

Reorder the terms:
-9 + -4x + 6x = 2(x + -4) + -21

Combine like terms: -4x + 6x = 2x
-9 + 2x = 2(x + -4) + -21

Reorder the terms:
-9 + 2x = 2(-4 + x) + -21
-9 + 2x = (-4 * 2 + x * 2) + -21
-9 + 2x = (-8 + 2x) + -21

Reorder the terms:
-9 + 2x = -8 + -21 + 2x

Combine like terms: -8 + -21 = -29
-9 + 2x = -29 + 2x

Add '-2x' to each side of the equation.
-9 + 2x + -2x = -29 + 2x + -2x

Combine like terms: 2x + -2x = 0
-9 + 0 = -29 + 2x + -2x
-9 = -29 + 2x + -2x

Combine like terms: 2x + -2x = 0
-9 = -29 + 0
-9 = -29

Solving
-9 = -29

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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