.3(3z+6)+12.6=.6(3z-6)

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Solution for .3(3z+6)+12.6=.6(3z-6) equation:


Simplifying
0.3(3z + 6) + 12.6 = 0.6(3z + -6)

Reorder the terms:
0.3(6 + 3z) + 12.6 = 0.6(3z + -6)
(6 * 0.3 + 3z * 0.3) + 12.6 = 0.6(3z + -6)
(1.8 + 0.9z) + 12.6 = 0.6(3z + -6)

Reorder the terms:
1.8 + 12.6 + 0.9z = 0.6(3z + -6)

Combine like terms: 1.8 + 12.6 = 14.4
14.4 + 0.9z = 0.6(3z + -6)

Reorder the terms:
14.4 + 0.9z = 0.6(-6 + 3z)
14.4 + 0.9z = (-6 * 0.6 + 3z * 0.6)
14.4 + 0.9z = (-3.6 + 1.8z)

Solving
14.4 + 0.9z = -3.6 + 1.8z

Solving for variable 'z'.

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

Add '-1.8z' to each side of the equation.
14.4 + 0.9z + -1.8z = -3.6 + 1.8z + -1.8z

Combine like terms: 0.9z + -1.8z = -0.9z
14.4 + -0.9z = -3.6 + 1.8z + -1.8z

Combine like terms: 1.8z + -1.8z = 0.0
14.4 + -0.9z = -3.6 + 0.0
14.4 + -0.9z = -3.6

Add '-14.4' to each side of the equation.
14.4 + -14.4 + -0.9z = -3.6 + -14.4

Combine like terms: 14.4 + -14.4 = 0.0
0.0 + -0.9z = -3.6 + -14.4
-0.9z = -3.6 + -14.4

Combine like terms: -3.6 + -14.4 = -18
-0.9z = -18

Divide each side by '-0.9'.
z = 20

Simplifying
z = 20

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