-9(3-y)-5y=13

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Solution for -9(3-y)-5y=13 equation:


Simplifying
-9(3 + -1y) + -5y = 13
(3 * -9 + -1y * -9) + -5y = 13
(-27 + 9y) + -5y = 13

Combine like terms: 9y + -5y = 4y
-27 + 4y = 13

Solving
-27 + 4y = 13

Solving for variable 'y'.

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

Add '27' to each side of the equation.
-27 + 27 + 4y = 13 + 27

Combine like terms: -27 + 27 = 0
0 + 4y = 13 + 27
4y = 13 + 27

Combine like terms: 13 + 27 = 40
4y = 40

Divide each side by '4'.
y = 10

Simplifying
y = 10

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