Question

Find x if (x/4-3/5)/(4/3-7x)=-3​

Answer 1

Answer:

(x/4-3/5)/(4/3-7x)=3

(5x-12/20)/(4-21x/3)=3

5x-12/20/4-21x/3=3

15x-36/80-420x=3

15x-36=3*80-420x

15x-36=240-1260x

15x+1260x=240+36

1275x=276

x=276/1275

x=0.21