8z-3.9=4.4+8.5(z-4)

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Solution for 8z-3.9=4.4+8.5(z-4) equation:


Simplifying
8z + -3.9 = 4.4 + 8.5(z + -4)

Reorder the terms:
-3.9 + 8z = 4.4 + 8.5(z + -4)

Reorder the terms:
-3.9 + 8z = 4.4 + 8.5(-4 + z)
-3.9 + 8z = 4.4 + (-4 * 8.5 + z * 8.5)
-3.9 + 8z = 4.4 + (-34 + 8.5z)

Combine like terms: 4.4 + -34 = -29.6
-3.9 + 8z = -29.6 + 8.5z

Solving
-3.9 + 8z = -29.6 + 8.5z

Solving for variable 'z'.

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

Add '-8.5z' to each side of the equation.
-3.9 + 8z + -8.5z = -29.6 + 8.5z + -8.5z

Combine like terms: 8z + -8.5z = -0.5z
-3.9 + -0.5z = -29.6 + 8.5z + -8.5z

Combine like terms: 8.5z + -8.5z = 0.0
-3.9 + -0.5z = -29.6 + 0.0
-3.9 + -0.5z = -29.6

Add '3.9' to each side of the equation.
-3.9 + 3.9 + -0.5z = -29.6 + 3.9

Combine like terms: -3.9 + 3.9 = 0.0
0.0 + -0.5z = -29.6 + 3.9
-0.5z = -29.6 + 3.9

Combine like terms: -29.6 + 3.9 = -25.7
-0.5z = -25.7

Divide each side by '-0.5'.
z = 51.4

Simplifying
z = 51.4

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