45=2y+1+y-1

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Solution for 45=2y+1+y-1 equation:


Simplifying
45 = 2y + 1 + y + -1

Reorder the terms:
45 = 1 + -1 + 2y + y

Combine like terms: 1 + -1 = 0
45 = 0 + 2y + y
45 = 2y + y

Combine like terms: 2y + y = 3y
45 = 3y

Solving
45 = 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.
45 + -3y = 3y + -3y

Combine like terms: 3y + -3y = 0
45 + -3y = 0

Add '-45' to each side of the equation.
45 + -45 + -3y = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -3y = 0 + -45
-3y = 0 + -45

Combine like terms: 0 + -45 = -45
-3y = -45

Divide each side by '-3'.
y = 15

Simplifying
y = 15

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