3(x+7)+15=(2x+15)+(x+21)

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Solution for 3(x+7)+15=(2x+15)+(x+21) equation:


Simplifying
3(x + 7) + 15 = (2x + 15) + (x + 21)

Reorder the terms:
3(7 + x) + 15 = (2x + 15) + (x + 21)
(7 * 3 + x * 3) + 15 = (2x + 15) + (x + 21)
(21 + 3x) + 15 = (2x + 15) + (x + 21)

Reorder the terms:
21 + 15 + 3x = (2x + 15) + (x + 21)

Combine like terms: 21 + 15 = 36
36 + 3x = (2x + 15) + (x + 21)

Reorder the terms:
36 + 3x = (15 + 2x) + (x + 21)

Remove parenthesis around (15 + 2x)
36 + 3x = 15 + 2x + (x + 21)

Reorder the terms:
36 + 3x = 15 + 2x + (21 + x)

Remove parenthesis around (21 + x)
36 + 3x = 15 + 2x + 21 + x

Reorder the terms:
36 + 3x = 15 + 21 + 2x + x

Combine like terms: 15 + 21 = 36
36 + 3x = 36 + 2x + x

Combine like terms: 2x + x = 3x
36 + 3x = 36 + 3x

Add '-36' to each side of the equation.
36 + -36 + 3x = 36 + -36 + 3x

Combine like terms: 36 + -36 = 0
0 + 3x = 36 + -36 + 3x
3x = 36 + -36 + 3x

Combine like terms: 36 + -36 = 0
3x = 0 + 3x
3x = 3x

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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