Proportions
Guided practice
Choose the operation that keeps both sides balanced.
0 / 10
Step 1
Cross multiply the diagonals
x + 5 = 12
What should you do first?
Your Turn
Work through the steps on your own, just as you practiced. Then enter your final answer.
Not quite!
Think about what inverse operation undoes addition.
Practice complete
You reached the goal: 10 points. Your two-step solving is getting stronger.