3(4z-7)=21+12z

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Solution for 3(4z-7)=21+12z equation: 


Simplifying
3(4z + -7) = 21 + 12z

Reorder the terms:
3(-7 + 4z) = 21 + 12z
(-7 * 3 + 4z * 3) = 21 + 12z
(-21 + 12z) = 21 + 12z

Add '-12z' to each side of the equation.
-21 + 12z + -12z = 21 + 12z + -12z

Combine like terms: 12z + -12z = 0
-21 + 0 = 21 + 12z + -12z
-21 = 21 + 12z + -12z

Combine like terms: 12z + -12z = 0
-21 = 21 + 0
-21 = 21

Solving
-21 = 21

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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