21x-11-12x=3(3x+5)+4

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Solution for 21x-11-12x=3(3x+5)+4 equation: 


Simplifying
21x + -11 + -12x = 3(3x + 5) + 4

Reorder the terms:
-11 + 21x + -12x = 3(3x + 5) + 4

Combine like terms: 21x + -12x = 9x
-11 + 9x = 3(3x + 5) + 4

Reorder the terms:
-11 + 9x = 3(5 + 3x) + 4
-11 + 9x = (5 * 3 + 3x * 3) + 4
-11 + 9x = (15 + 9x) + 4

Reorder the terms:
-11 + 9x = 15 + 4 + 9x

Combine like terms: 15 + 4 = 19
-11 + 9x = 19 + 9x

Add '-9x' to each side of the equation.
-11 + 9x + -9x = 19 + 9x + -9x

Combine like terms: 9x + -9x = 0
-11 + 0 = 19 + 9x + -9x
-11 = 19 + 9x + -9x

Combine like terms: 9x + -9x = 0
-11 = 19 + 0
-11 = 19

Solving
-11 = 19

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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