-3x+5x-7=2(x-1)-21

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Solution for -3x+5x-7=2(x-1)-21 equation:


Simplifying
-3x + 5x + -7 = 2(x + -1) + -21

Reorder the terms:
-7 + -3x + 5x = 2(x + -1) + -21

Combine like terms: -3x + 5x = 2x
-7 + 2x = 2(x + -1) + -21

Reorder the terms:
-7 + 2x = 2(-1 + x) + -21
-7 + 2x = (-1 * 2 + x * 2) + -21
-7 + 2x = (-2 + 2x) + -21

Reorder the terms:
-7 + 2x = -2 + -21 + 2x

Combine like terms: -2 + -21 = -23
-7 + 2x = -23 + 2x

Add '-2x' to each side of the equation.
-7 + 2x + -2x = -23 + 2x + -2x

Combine like terms: 2x + -2x = 0
-7 + 0 = -23 + 2x + -2x
-7 = -23 + 2x + -2x

Combine like terms: 2x + -2x = 0
-7 = -23 + 0
-7 = -23

Solving
-7 = -23

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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