Anumber that has three in the hundredths place

How to solve a simultaneous equation involved with fractions?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.