91=2(y-10)+y

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Solution for 91=2(y-10)+y equation:


Simplifying
91 = 2(y + -10) + y

Reorder the terms:
91 = 2(-10 + y) + y
91 = (-10 * 2 + y * 2) + y
91 = (-20 + 2y) + y

Combine like terms: 2y + y = 3y
91 = -20 + 3y

Solving
91 = -20 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
91 + -3y = -20 + 3y + -3y

Combine like terms: 3y + -3y = 0
91 + -3y = -20 + 0
91 + -3y = -20

Add '-91' to each side of the equation.
91 + -91 + -3y = -20 + -91

Combine like terms: 91 + -91 = 0
0 + -3y = -20 + -91
-3y = -20 + -91

Combine like terms: -20 + -91 = -111
-3y = -111

Divide each side by '-3'.
y = 37

Simplifying
y = 37

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