-7(3x+4)+21x=-28

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Solution for -7(3x+4)+21x=-28 equation: 


Simplifying
-7(3x + 4) + 21x = -28

Reorder the terms:
-7(4 + 3x) + 21x = -28
(4 * -7 + 3x * -7) + 21x = -28
(-28 + -21x) + 21x = -28

Combine like terms: -21x + 21x = 0
-28 + 0 = -28
-28 = -28

Add '28' to each side of the equation.
-28 + 28 = -28 + 28

Combine like terms: -28 + 28 = 0
0 = -28 + 28

Combine like terms: -28 + 28 = 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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