15=12+z*2

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Solution for 15=12+z*2 equation:


Simplifying
15 = 12 + z * 2

Reorder the terms for easier multiplication:
15 = 12 + 2z

Solving
15 = 12 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
15 + -2z = 12 + 2z + -2z

Combine like terms: 2z + -2z = 0
15 + -2z = 12 + 0
15 + -2z = 12

Add '-15' to each side of the equation.
15 + -15 + -2z = 12 + -15

Combine like terms: 15 + -15 = 0
0 + -2z = 12 + -15
-2z = 12 + -15

Combine like terms: 12 + -15 = -3
-2z = -3

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

Simplifying
z = 1.5

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