40=3y-4+2y-1

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Solution for 40=3y-4+2y-1 equation: 


Simplifying
40 = 3y + -4 + 2y + -1

Reorder the terms:
40 = -4 + -1 + 3y + 2y

Combine like terms: -4 + -1 = -5
40 = -5 + 3y + 2y

Combine like terms: 3y + 2y = 5y
40 = -5 + 5y

Solving
40 = -5 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
40 + -5y = -5 + 5y + -5y

Combine like terms: 5y + -5y = 0
40 + -5y = -5 + 0
40 + -5y = -5

Add '-40' to each side of the equation.
40 + -40 + -5y = -5 + -40

Combine like terms: 40 + -40 = 0
0 + -5y = -5 + -40
-5y = -5 + -40

Combine like terms: -5 + -40 = -45
-5y = -45

Divide each side by '-5'.
y = 9

Simplifying
y = 9

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