39=3(21-z)+3(z-4)

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Solution for 39=3(21-z)+3(z-4) equation: 


Simplifying
39 = 3(21 + -1z) + 3(z + -4)
39 = (21 * 3 + -1z * 3) + 3(z + -4)
39 = (63 + -3z) + 3(z + -4)

Reorder the terms:
39 = 63 + -3z + 3(-4 + z)
39 = 63 + -3z + (-4 * 3 + z * 3)
39 = 63 + -3z + (-12 + 3z)

Reorder the terms:
39 = 63 + -12 + -3z + 3z

Combine like terms: 63 + -12 = 51
39 = 51 + -3z + 3z

Combine like terms: -3z + 3z = 0
39 = 51 + 0
39 = 51

Solving
39 = 51

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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