9y-(6y-13)=31

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Solution for 9y-(6y-13)=31 equation:


Simplifying
9y + -1(6y + -13) = 31

Reorder the terms:
9y + -1(-13 + 6y) = 31
9y + (-13 * -1 + 6y * -1) = 31
9y + (13 + -6y) = 31

Reorder the terms:
13 + 9y + -6y = 31

Combine like terms: 9y + -6y = 3y
13 + 3y = 31

Solving
13 + 3y = 31

Solving for variable 'y'.

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

Add '-13' to each side of the equation.
13 + -13 + 3y = 31 + -13

Combine like terms: 13 + -13 = 0
0 + 3y = 31 + -13
3y = 31 + -13

Combine like terms: 31 + -13 = 18
3y = 18

Divide each side by '3'.
y = 6

Simplifying
y = 6

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