3(2.8-1.3y)+4(y)=8.5

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Solution for 3(2.8-1.3y)+4(y)=8.5 equation: 


Simplifying
3(2.8 + -1.3y) + 4(y) = 8.5
(2.8 * 3 + -1.3y * 3) + 4(y) = 8.5
(8.4 + -3.9y) + 4(y) = 8.5

Combine like terms: -3.9y + 4y = 0.1y
8.4 + 0.1y = 8.5

Solving
8.4 + 0.1y = 8.5

Solving for variable 'y'.

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

Add '-8.4' to each side of the equation.
8.4 + -8.4 + 0.1y = 8.5 + -8.4

Combine like terms: 8.4 + -8.4 = 0.0
0.0 + 0.1y = 8.5 + -8.4
0.1y = 8.5 + -8.4

Combine like terms: 8.5 + -8.4 = 0.1
0.1y = 0.1

Divide each side by '0.1'.
y = 1

Simplifying
y = 1

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