4(z-12)=z-9

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Solution for 4(z-12)=z-9 equation:


Simplifying
4(z + -12) = z + -9

Reorder the terms:
4(-12 + z) = z + -9
(-12 * 4 + z * 4) = z + -9
(-48 + 4z) = z + -9

Reorder the terms:
-48 + 4z = -9 + z

Solving
-48 + 4z = -9 + z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-1z' to each side of the equation.
-48 + 4z + -1z = -9 + z + -1z

Combine like terms: 4z + -1z = 3z
-48 + 3z = -9 + z + -1z

Combine like terms: z + -1z = 0
-48 + 3z = -9 + 0
-48 + 3z = -9

Add '48' to each side of the equation.
-48 + 48 + 3z = -9 + 48

Combine like terms: -48 + 48 = 0
0 + 3z = -9 + 48
3z = -9 + 48

Combine like terms: -9 + 48 = 39
3z = 39

Divide each side by '3'.
z = 13

Simplifying
z = 13

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