8.9-.4y=13.02

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Solution for 8.9-.4y=13.02 equation: 


Simplifying
8.9 + -0.4y = 13.02

Solving
8.9 + -0.4y = 13.02

Solving for variable 'y'.

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

Add '-8.9' to each side of the equation.
8.9 + -8.9 + -0.4y = 13.02 + -8.9

Combine like terms: 8.9 + -8.9 = 0.0
0.0 + -0.4y = 13.02 + -8.9
-0.4y = 13.02 + -8.9

Combine like terms: 13.02 + -8.9 = 4.12
-0.4y = 4.12

Divide each side by '-0.4'.
y = -10.3

Simplifying
y = -10.3

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