You owe $34 to your sister. You paid x dollars back and you know owe $12. How much did you pay her back?

Answer 1

Let's write it out

You owe: $34

What you paid back: Let's call it X since we don't know

What you owe after paying X: 12

Our Equation: 34-x=12

Let's keep x on the left- move -34 to the right

-X=12-34

-X=-22

Divide by one to get x

X=22

Answer 2

34 - x = 12

Can you solve for x and answer?