1-3y=7

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Solution for 1-3y=7 equation: 


Simplifying
1 + -3y = 7

Solving
1 + -3y = 7

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 + -3y = 7 + -1

Combine like terms: 1 + -1 = 0
0 + -3y = 7 + -1
-3y = 7 + -1

Combine like terms: 7 + -1 = 6
-3y = 6

Divide each side by '-3'.
y = -2

Simplifying
y = -2

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