-3.1=4.9-2y

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Solution for -3.1=4.9-2y equation: 


Simplifying
-3.1 = 4.9 + -2y

Solving
-3.1 = 4.9 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
-3.1 + 2y = 4.9 + -2y + 2y

Combine like terms: -2y + 2y = 0
-3.1 + 2y = 4.9 + 0
-3.1 + 2y = 4.9

Add '3.1' to each side of the equation.
-3.1 + 3.1 + 2y = 4.9 + 3.1

Combine like terms: -3.1 + 3.1 = 0.0
0.0 + 2y = 4.9 + 3.1
2y = 4.9 + 3.1

Combine like terms: 4.9 + 3.1 = 8
2y = 8

Divide each side by '2'.
y = 4

Simplifying
y = 4

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