Solve for y
y = \frac{48}{7} = 6\frac{6}{7} \approx 6.857142857
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-1=7\left(y-7\right)
Variable y cannot be equal to 7 since division by zero is not defined. Multiply both sides of the equation by y-7.
-1=7y-49
Use the distributive property to multiply 7 by y-7.
7y-49=-1
Swap sides so that all variable terms are on the left hand side.
7y=-1+49
Add 49 to both sides.
7y=48
Add -1 and 49 to get 48.
y=\frac{48}{7}
Divide both sides by 7.
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