3=2.1y-3

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Solution for 3=2.1y-3 equation:


Simplifying
3 = 2.1y + -3

Reorder the terms:
3 = -3 + 2.1y

Solving
3 = -3 + 2.1y

Solving for variable 'y'.

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

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

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

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

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

Combine like terms: -3 + -3 = -6
-2.1y = -6

Divide each side by '-2.1'.
y = 2.857142857

Simplifying
y = 2.857142857

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