this equation for the sum of the ages: (x) + (x+3) + (x−2) + 3(x+3) − 1=87.



Explain the meaning of the variable and each term of the equation.

3 answers

x=13
Don't know what you mean by "explain the meaning".

x + x+3 + x−2 + 3x + 9 − 1 = 87.

7x + 9 = 87

7x = 76

Do you have any typos?

Don't know how Captain America got 13.
This is how, but maybe I am wrong. Sorry😢
x+x+3+x-2+3x+9-1-87=
6x=78
x=78/6 =13
x=13