Question

15 sub subtract from 4 times a number is equal to 20 added to 3 times the number. find number

Answer 1

the answer is 5 this would be helpful

Answer 2

Let the number be x.
15-4x=20+3x
15-20=3x+4x
-5=7x
7x=-5
x=-5/7
x=0.714(approx)