9-(y-4)=12

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Solution for 9-(y-4)=12 equation:


Simplifying
9 + -1(y + -4) = 12

Reorder the terms:
9 + -1(-4 + y) = 12
9 + (-4 * -1 + y * -1) = 12
9 + (4 + -1y) = 12

Combine like terms: 9 + 4 = 13
13 + -1y = 12

Solving
13 + -1y = 12

Solving for variable 'y'.

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

Add '-13' to each side of the equation.
13 + -13 + -1y = 12 + -13

Combine like terms: 13 + -13 = 0
0 + -1y = 12 + -13
-1y = 12 + -13

Combine like terms: 12 + -13 = -1
-1y = -1

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

Simplifying
y = 1

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