(5-13y)-(9+7y)=

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Solution for (5-13y)-(9+7y)= equation:


Simplifying
(5 + -13y) + -1(9 + 7y) = 0

Remove parenthesis around (5 + -13y)
5 + -13y + -1(9 + 7y) = 0
5 + -13y + (9 * -1 + 7y * -1) = 0
5 + -13y + (-9 + -7y) = 0

Reorder the terms:
5 + -9 + -13y + -7y = 0

Combine like terms: 5 + -9 = -4
-4 + -13y + -7y = 0

Combine like terms: -13y + -7y = -20y
-4 + -20y = 0

Solving
-4 + -20y = 0

Solving for variable 'y'.

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

Add '4' to each side of the equation.
-4 + 4 + -20y = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -20y = 0 + 4
-20y = 0 + 4

Combine like terms: 0 + 4 = 4
-20y = 4

Divide each side by '-20'.
y = -0.2

Simplifying
y = -0.2

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