If you add​ Natalie's age and​ Fred's age, the result is 40 . If you add​ Fred's age to times​ 3 Natalie's age, the result is 64. Write and solve a system of equations to find how old Fred and Natalie are.

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

what are you doing do you need examples of variable questions?

step-by-step explanation:

5a-1=9               bring the one over the =

5a=10                     divide by your variable

a=2

brainliest? ?

here try this one

3a-24=0