3(7x+12)-15=7(3x-1)+28

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Solution for 3(7x+12)-15=7(3x-1)+28 equation:


Simplifying
3(7x + 12) + -15 = 7(3x + -1) + 28

Reorder the terms:
3(12 + 7x) + -15 = 7(3x + -1) + 28
(12 * 3 + 7x * 3) + -15 = 7(3x + -1) + 28
(36 + 21x) + -15 = 7(3x + -1) + 28

Reorder the terms:
36 + -15 + 21x = 7(3x + -1) + 28

Combine like terms: 36 + -15 = 21
21 + 21x = 7(3x + -1) + 28

Reorder the terms:
21 + 21x = 7(-1 + 3x) + 28
21 + 21x = (-1 * 7 + 3x * 7) + 28
21 + 21x = (-7 + 21x) + 28

Reorder the terms:
21 + 21x = -7 + 28 + 21x

Combine like terms: -7 + 28 = 21
21 + 21x = 21 + 21x

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

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

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

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

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

Combine like terms: 21x + -21x = 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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