3y-1.25(12+-1.3y)=-1

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Solution for 3y-1.25(12+-1.3y)=-1 equation: 


Simplifying
3y + -1.25(12 + -1.3y) = -1
3y + (12 * -1.25 + -1.3y * -1.25) = -1
3y + (-15 + 1.625y) = -1

Reorder the terms:
-15 + 3y + 1.625y = -1

Combine like terms: 3y + 1.625y = 4.625y
-15 + 4.625y = -1

Solving
-15 + 4.625y = -1

Solving for variable 'y'.

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

Add '15' to each side of the equation.
-15 + 15 + 4.625y = -1 + 15

Combine like terms: -15 + 15 = 0
0 + 4.625y = -1 + 15
4.625y = -1 + 15

Combine like terms: -1 + 15 = 14
4.625y = 14

Divide each side by '4.625'.
y = 3.027027027

Simplifying
y = 3.027027027

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