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

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


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

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

Combine like terms: 7x + -3x = 4x
21 + 4x = 2(2x + 1) + -3

Reorder the terms:
21 + 4x = 2(1 + 2x) + -3
21 + 4x = (1 * 2 + 2x * 2) + -3
21 + 4x = (2 + 4x) + -3

Reorder the terms:
21 + 4x = 2 + -3 + 4x

Combine like terms: 2 + -3 = -1
21 + 4x = -1 + 4x

Add '-4x' to each side of the equation.
21 + 4x + -4x = -1 + 4x + -4x

Combine like terms: 4x + -4x = 0
21 + 0 = -1 + 4x + -4x
21 = -1 + 4x + -4x

Combine like terms: 4x + -4x = 0
21 = -1 + 0
21 = -1

Solving
21 = -1

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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