Question

If I subtract 5 from three -fifth of a number , I get 7 . Find the number .​

Answer 1

Answer:

3(x-5)=x-7

3x - 15 = x - 7

Subtract x from each side and then add 15 to each side:

2x = 8

x=4

Plug 4 back into the original problem to make sure the answer is correct.