12=15(z-0.2)

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Solution for 12=15(z-0.2) equation:


Simplifying
12 = 15(z + -0.2)

Reorder the terms:
12 = 15(-0.2 + z)
12 = (-0.2 * 15 + z * 15)
12 = (-3 + 15z)

Solving
12 = -3 + 15z

Solving for variable 'z'.

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

Add '-15z' to each side of the equation.
12 + -15z = -3 + 15z + -15z

Combine like terms: 15z + -15z = 0
12 + -15z = -3 + 0
12 + -15z = -3

Add '-12' to each side of the equation.
12 + -12 + -15z = -3 + -12

Combine like terms: 12 + -12 = 0
0 + -15z = -3 + -12
-15z = -3 + -12

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

Divide each side by '-15'.
z = 1

Simplifying
z = 1

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