2(3.4-0.8y)-3y=-7

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Solution for 2(3.4-0.8y)-3y=-7 equation: 


Simplifying
2(3.4 + -0.8y) + -3y = -7
(3.4 * 2 + -0.8y * 2) + -3y = -7
(6.8 + -1.6y) + -3y = -7

Combine like terms: -1.6y + -3y = -4.6y
6.8 + -4.6y = -7

Solving
6.8 + -4.6y = -7

Solving for variable 'y'.

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

Add '-6.8' to each side of the equation.
6.8 + -6.8 + -4.6y = -7 + -6.8

Combine like terms: 6.8 + -6.8 = 0.0
0.0 + -4.6y = -7 + -6.8
-4.6y = -7 + -6.8

Combine like terms: -7 + -6.8 = -13.8
-4.6y = -13.8

Divide each side by '-4.6'.
y = 3

Simplifying
y = 3

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