2(-1.4-1.8y)-4y=20

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Solution for 2(-1.4-1.8y)-4y=20 equation: 


Simplifying
2(-1.4 + -1.8y) + -4y = 20
(-1.4 * 2 + -1.8y * 2) + -4y = 20
(-2.8 + -3.6y) + -4y = 20

Combine like terms: -3.6y + -4y = -7.6y
-2.8 + -7.6y = 20

Solving
-2.8 + -7.6y = 20

Solving for variable 'y'.

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

Add '2.8' to each side of the equation.
-2.8 + 2.8 + -7.6y = 20 + 2.8

Combine like terms: -2.8 + 2.8 = 0.0
0.0 + -7.6y = 20 + 2.8
-7.6y = 20 + 2.8

Combine like terms: 20 + 2.8 = 22.8
-7.6y = 22.8

Divide each side by '-7.6'.
y = -3

Simplifying
y = -3

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