7(9+y)=6(9+y)

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Solution for 7(9+y)=6(9+y) equation:


Simplifying
7(9 + y) = 6(9 + y)
(9 * 7 + y * 7) = 6(9 + y)
(63 + 7y) = 6(9 + y)
63 + 7y = (9 * 6 + y * 6)
63 + 7y = (54 + 6y)

Solving
63 + 7y = 54 + 6y

Solving for variable 'y'.

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

Add '-6y' to each side of the equation.
63 + 7y + -6y = 54 + 6y + -6y

Combine like terms: 7y + -6y = 1y
63 + 1y = 54 + 6y + -6y

Combine like terms: 6y + -6y = 0
63 + 1y = 54 + 0
63 + 1y = 54

Add '-63' to each side of the equation.
63 + -63 + 1y = 54 + -63

Combine like terms: 63 + -63 = 0
0 + 1y = 54 + -63
1y = 54 + -63

Combine like terms: 54 + -63 = -9
1y = -9

Divide each side by '1'.
y = -9

Simplifying
y = -9

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