3+4-y=0

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Solution for 3+4-y=0 equation:


Simplifying
3 + 4 + -1y = 0

Combine like terms: 3 + 4 = 7
7 + -1y = 0

Solving
7 + -1y = 0

Solving for variable 'y'.

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

Add '-7' to each side of the equation.
7 + -7 + -1y = 0 + -7

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

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

Divide each side by '-1'.
y = 7

Simplifying
y = 7

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