Question

solve by elimination
a+b=1/3
a-b=1/4

Answer 1

add them together to find a
then plug back either of them to get b

Answer 2

whatttttt?

Answer 3

I don't think my sentence is too ambiguous to understand. hiihihi, just do it.

Answer 4

Winner66 is right. You have two equations in two unknowns. Just add them together, term by term. What happens to b? Take care in combining those fractions, 1/3 and 1/4 (find the LCD and use it).

Answer 5

You'll end up with a new equation in a only (b has disappeared thanks to subtraction). Solve the resulting equation for a.

Then what?