-2.1=0.9-3y

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Solution for -2.1=0.9-3y equation:


Simplifying
-2.1 = 0.9 + -3y

Solving
-2.1 = 0.9 + -3y

Solving for variable 'y'.

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

Add '3y' to each side of the equation.
-2.1 + 3y = 0.9 + -3y + 3y

Combine like terms: -3y + 3y = 0
-2.1 + 3y = 0.9 + 0
-2.1 + 3y = 0.9

Add '2.1' to each side of the equation.
-2.1 + 2.1 + 3y = 0.9 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + 3y = 0.9 + 2.1
3y = 0.9 + 2.1

Combine like terms: 0.9 + 2.1 = 3
3y = 3

Divide each side by '3'.
y = 1

Simplifying
y = 1

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