# SOLUTION: The age of a man is 4 times the sum of the ages of his three children and in 8 years it will be twice the sum. What is the present age of the man?

Algebra ->  Algebra  -> Test -> SOLUTION: The age of a man is 4 times the sum of the ages of his three children and in 8 years it will be twice the sum. What is the present age of the man?      Log On

 Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Test Calculators and Practice Answers archive Word Problems Lessons In Depth

Question 628769: The age of a man is 4 times the sum of the ages of his three children and in 8 years it will be twice the sum. What is the present age of the man?
You can put this solution on YOUR website!
Let x be the age of the man. Let y be the sum of the ages of the 3 children. Then x=4y x+8=2*(y+3*8)
x-4y=0 x-2y=-8+48 We solve this system
 Solved by pluggable solver: Linear System solver (using determinant) Solve: Any system of equations: has solution or (x=80, y=20}