{{ dragState.item.isVar ? 'category' : 'toll' }}
Level {{ step }} / 5

Build the Equation

Drag the pieces to match the story on each side of the scale.

Red Gym charges a ${{ p1.c1 }} fee plus ${{ p1.r1 }} per month.
Green Gym charges a ${{ p1.c2 }} fee plus ${{ p1.r2 }} per month.
{{ item.isVar ? 'category' : 'toll' }}
fitness_center Red Gym
Drop here
=
fitness_center Green Gym
Drop here

Tap to Cancel

Tap matching items on opposite sides to remove them and keep balance.

celebration Simplified!
x
1
Opposite sides only! =
x
1

Slide to Equate

Move the slider to find how many weeks it takes for them to have the same amount.

Alex has ${{ p2.c1 }} and saves ${{ p2.r1 }}/week.
Sam has ${{ p2.c2 }} and saves ${{ p2.r2 }}/week.
${{ s3AlexTotal }}
Alex
check_circle Equal!
${{ s3SamTotal }}
Sam
0 weeks Week {{ s3Weeks }} 10 weeks

Solve it!

Use the keypad to enter the final value of x.

{{ s4Input }}
workspace_premium

Equation Master!

You successfully built, balanced, and solved equations with variables on both sides.