84=9(8)+y

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Solution for 84=9(8)+y equation:


Simplifying
84 = 9(8) + y

Multiply 9 * 8
84 = 72 + y

Solving
84 = 72 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
84 + -1y = 72 + y + -1y

Combine like terms: y + -1y = 0
84 + -1y = 72 + 0
84 + -1y = 72

Add '-84' to each side of the equation.
84 + -84 + -1y = 72 + -84

Combine like terms: 84 + -84 = 0
0 + -1y = 72 + -84
-1y = 72 + -84

Combine like terms: 72 + -84 = -12
-1y = -12

Divide each side by '-1'.
y = 12

Simplifying
y = 12

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