2.1-y=-8.7+2y

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Solution for 2.1-y=-8.7+2y equation:


Simplifying
2.1 + -1y = -8.7 + 2y

Solving
2.1 + -1y = -8.7 + 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.
2.1 + -1y + -2y = -8.7 + 2y + -2y

Combine like terms: -1y + -2y = -3y
2.1 + -3y = -8.7 + 2y + -2y

Combine like terms: 2y + -2y = 0
2.1 + -3y = -8.7 + 0
2.1 + -3y = -8.7

Add '-2.1' to each side of the equation.
2.1 + -2.1 + -3y = -8.7 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + -3y = -8.7 + -2.1
-3y = -8.7 + -2.1

Combine like terms: -8.7 + -2.1 = -10.8
-3y = -10.8

Divide each side by '-3'.
y = 3.6

Simplifying
y = 3.6

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