Question

one month ruby worked 6 hours more than Isaac and Svetlana worked 4 times as many hours as ruby together they worked 126.find the number of hours each person worked?

Answer 1

Use x as the base variable. All others as x+(extra amount).

Answer 2

R=I+16
S=4R
I+R+S=126
I+I+6+4I+24=126
6I+30=126
4I=96
I=16
R=22
S=88