F = 4J
(F+22) = 2(J+22)
Substitute 4J for F in the second equation and solve for F. Insert that value into the first equation to solve for J. Check by putting both values into the second equation.
Juan's father is 4 times as old as Juan.Twenty-two years from now he will be twice as old as Juan.What are their ages now?
My work-
4(F)=J
22(2)=J
1 answer