-5.5+3.5(1-9.5z)=25.5

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Solution for -5.5+3.5(1-9.5z)=25.5 equation:


Simplifying
-5.5 + 3.5(1 + -9.5z) = 25.5
-5.5 + (1 * 3.5 + -9.5z * 3.5) = 25.5
-5.5 + (3.5 + -33.25z) = 25.5

Combine like terms: -5.5 + 3.5 = -2
-2 + -33.25z = 25.5

Solving
-2 + -33.25z = 25.5

Solving for variable 'z'.

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

Add '2' to each side of the equation.
-2 + 2 + -33.25z = 25.5 + 2

Combine like terms: -2 + 2 = 0
0 + -33.25z = 25.5 + 2
-33.25z = 25.5 + 2

Combine like terms: 25.5 + 2 = 27.5
-33.25z = 27.5

Divide each side by '-33.25'.
z = -0.8270676692

Simplifying
z = -0.8270676692

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