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10 questions
6m4+6m1
6m5
36m3
36m4
36m5
9t6+9t1=
9t7
18t7
81t7
9t5
53z+6z=
3023z
304z
1123z
304z
8b1+8b3=
2b1
8b4
8b2
16b4
10n7+10n5=
5n6
10n12
5n12
10n2
43x−4x=
2x
84x
8x
84
87y−83y=
2y
810y
1610y
84y
107g−105g=
5g
1012g
102g
52g
12d11−3d1=
12d7
15d12
9d10
15d10
8y7−16y5=
16y9
24y12
8y2
16y2
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