1-3y+y=4

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


Simplifying
1 + -3y + y = 4

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

Solving
1 + -2y = 4

Solving for variable 'y'.

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

Add '-1' to each side of the equation.
1 + -1 + -2y = 4 + -1

Combine like terms: 1 + -1 = 0
0 + -2y = 4 + -1
-2y = 4 + -1

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

Divide each side by '-2'.
y = -1.5

Simplifying
y = -1.5

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