YEAR 7 · A LAB FOR MATHEMATICAL IDEAS
Algebra Lab
Explore the meaning of x
Drag & Substitute
x represents the value inside one box. Positive values use +1 units; negative values use −1 units; x = 0 leaves the box empty. The number on each small block gives its value.
x = ?
Choose a value for x
Drag a card into the slot, or click / tap a card. Keyboard: Tab to a card and press Enter.
Enter a coefficient such as 3, −3, 1/2, 2/3 or −1/2. A block marked −1 has value negative one; an empty box has value zero.
Target Output: 17