4z-12=z+3

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Solution for 4z-12=z+3 equation:


Simplifying
4z + -12 = z + 3

Reorder the terms:
-12 + 4z = z + 3

Reorder the terms:
-12 + 4z = 3 + z

Solving
-12 + 4z = 3 + 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.
-12 + 4z + -1z = 3 + z + -1z

Combine like terms: 4z + -1z = 3z
-12 + 3z = 3 + z + -1z

Combine like terms: z + -1z = 0
-12 + 3z = 3 + 0
-12 + 3z = 3

Add '12' to each side of the equation.
-12 + 12 + 3z = 3 + 12

Combine like terms: -12 + 12 = 0
0 + 3z = 3 + 12
3z = 3 + 12

Combine like terms: 3 + 12 = 15
3z = 15

Divide each side by '3'.
z = 5

Simplifying
z = 5

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