Need Help please

Question

Six years ago Matt was 4 times as old as Brown and in 3 years the sum of their ages will be 43 years. find their present ages

Answer 1

M-6 = 4(B-6) = 4B-24

M=4B -18

M+3 + B+ 3 = 43

M+B = 43-6 = 37

M=37-B

37-B = 4B-18

5B = 55

B =55/5 =11 years old

M = 37-11= 26 years old