Question

drag the equations to the correct backpacks.
$b - 20 = 30$ $12 - f = 8$ $32 = 19 + 13$ $7 = 14 \div t$
$48 \div u = 8$ $21 - 11 = 10$ $80 = 20 \times p$ $6 \times 3 = 18$
$? - 15 = 25$
equations with variables equations without variables

Explanation:

Step1: Identify variable-containing equations

Equations with letters (variables): $b-20=30$, $48\div u=8$, $12-f=8$, $7=14\div t$, $80=20\times p$, $?-15=25$

Step2: Identify no-variable equations

Equations with only numbers: $21-11=10$, $32=19+13$, $6\times3=18$

Answer:

Equations with Variables (Blue Backpack):

$b-20=30$, $48\div u=8$, $12-f=8$, $7=14\div t$, $80=20\times p$, $?-15=25$

Equations without Variables (Yellow Backpack):

$21-11=10$, $32=19+13$, $6\times3=18$