If9/21 is equivalent to 1+x/7. Find x

1 answer

To find x, we need to first simplify the fraction 9/21:

9/21 = 1/3

Now we know that 1/3 is equivalent to 1 + x/7. To find x, we can set up the equation:

1 + x/7 = 1/3

Subtract 1 from both sides:

x/7 = 1/3 - 1

x/7 = -2/3

Multiply both sides by 7 to isolate x:

x = -2/3 * 7
x = -14/3

Therefore, x = -14/3.