Lets say that Carlo's age is x. Then that means Peter is x+4. It says eight years ago so you subtract eight from both ages so Carlo becomes (x-8) and peter becomes (x-4), now we solve.
(x-8)+(x-4)=26
so we transpose and we get x+x=26+8+4 and then we put like terms together so 2x=38.
then we simplify 38/2=19 so x=19
in order to confirm the correct answer, we have to substitute so
(19-8)+(19-4)=26 --> 11+15=26-->26=26 and this is true
Answers & Comments
Answer:
x=19, Carlo's age is 19
Step-by-step explanation:
Lets say that Carlo's age is x. Then that means Peter is x+4. It says eight years ago so you subtract eight from both ages so Carlo becomes (x-8) and peter becomes (x-4), now we solve.
(x-8)+(x-4)=26
so we transpose and we get x+x=26+8+4 and then we put like terms together so 2x=38.
then we simplify 38/2=19 so x=19
in order to confirm the correct answer, we have to substitute so
(19-8)+(19-4)=26 --> 11+15=26-->26=26 and this is true