3*3-y=4

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Solution for 3*3-y=4 equation: 


Simplifying
3 * 3 + -1y = 4

Multiply 3 * 3
9 + -1y = 4

Solving
9 + -1y = 4

Solving for variable 'y'.

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

Add '-9' to each side of the equation.
9 + -9 + -1y = 4 + -9

Combine like terms: 9 + -9 = 0
0 + -1y = 4 + -9
-1y = 4 + -9

Combine like terms: 4 + -9 = -5
-1y = -5

Divide each side by '-1'.
y = 5

Simplifying
y = 5

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