.4(z-18)-30=6

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Solution for .4(z-18)-30=6 equation:


Simplifying
0.4(z + -18) + -30 = 6

Reorder the terms:
0.4(-18 + z) + -30 = 6
(-18 * 0.4 + z * 0.4) + -30 = 6
(-7.2 + 0.4z) + -30 = 6

Reorder the terms:
-7.2 + -30 + 0.4z = 6

Combine like terms: -7.2 + -30 = -37.2
-37.2 + 0.4z = 6

Solving
-37.2 + 0.4z = 6

Solving for variable 'z'.

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

Add '37.2' to each side of the equation.
-37.2 + 37.2 + 0.4z = 6 + 37.2

Combine like terms: -37.2 + 37.2 = 0.0
0.0 + 0.4z = 6 + 37.2
0.4z = 6 + 37.2

Combine like terms: 6 + 37.2 = 43.2
0.4z = 43.2

Divide each side by '0.4'.
z = 108

Simplifying
z = 108

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