7(9+y)=84

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Solution for 7(9+y)=84 equation: 


Simplifying
7(9 + y) = 84
(9 * 7 + y * 7) = 84
(63 + 7y) = 84

Solving
63 + 7y = 84

Solving for variable 'y'.

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

Add '-63' to each side of the equation.
63 + -63 + 7y = 84 + -63

Combine like terms: 63 + -63 = 0
0 + 7y = 84 + -63
7y = 84 + -63

Combine like terms: 84 + -63 = 21
7y = 21

Divide each side by '7'.
y = 3

Simplifying
y = 3

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