2z+12-4z=9

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Solution for 2z+12-4z=9 equation:


Simplifying
2z + 12 + -4z = 9

Reorder the terms:
12 + 2z + -4z = 9

Combine like terms: 2z + -4z = -2z
12 + -2z = 9

Solving
12 + -2z = 9

Solving for variable 'z'.

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

Add '-12' to each side of the equation.
12 + -12 + -2z = 9 + -12

Combine like terms: 12 + -12 = 0
0 + -2z = 9 + -12
-2z = 9 + -12

Combine like terms: 9 + -12 = -3
-2z = -3

Divide each side by '-2'.
z = 1.5

Simplifying
z = 1.5

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