2+3.5(1-8y)=22.5

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Solution for 2+3.5(1-8y)=22.5 equation: 


Simplifying
2 + 3.5(1 + -8y) = 22.5
2 + (1 * 3.5 + -8y * 3.5) = 22.5
2 + (3.5 + -28y) = 22.5

Combine like terms: 2 + 3.5 = 5.5
5.5 + -28y = 22.5

Solving
5.5 + -28y = 22.5

Solving for variable 'y'.

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

Add '-5.5' to each side of the equation.
5.5 + -5.5 + -28y = 22.5 + -5.5

Combine like terms: 5.5 + -5.5 = 0.0
0.0 + -28y = 22.5 + -5.5
-28y = 22.5 + -5.5

Combine like terms: 22.5 + -5.5 = 17
-28y = 17

Divide each side by '-28'.
y = -0.6071428571

Simplifying
y = -0.6071428571

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