Question

When 15 is added to 7/8 of a number we get y. If
y = 4 the number is
3
​

Answer 1

Let the number be x

then 15 +$\frac{7x}{8}$ = y =4  (given y=4)

     120 + 7x = 32

           7x = 32 -120= -88

             x = -88/7

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