42-3y=33-y

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Solution for 42-3y=33-y equation:


Simplifying
42 + -3y = 33 + -1y

Solving
42 + -3y = 33 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
42 + -3y + y = 33 + -1y + y

Combine like terms: -3y + y = -2y
42 + -2y = 33 + -1y + y

Combine like terms: -1y + y = 0
42 + -2y = 33 + 0
42 + -2y = 33

Add '-42' to each side of the equation.
42 + -42 + -2y = 33 + -42

Combine like terms: 42 + -42 = 0
0 + -2y = 33 + -42
-2y = 33 + -42

Combine like terms: 33 + -42 = -9
-2y = -9

Divide each side by '-2'.
y = 4.5

Simplifying
y = 4.5

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