Question

56+×=21×4 6×х=8×3 х÷7=6

Answer 1

1) ... 56+х=84; х=84-56; х=28
2) ... 6×х=24; х=24/6; х=4
3) х/7=6; х=7×6; х=42
Вот.

Answer 2

56+×=21*4
56+×=84
×=84-56
×=28
56+28=84
84=84


6*×=8*3
6*×=24
×=24:6
×=4
6*4=24
24=24

×:7=6
×=7*6
×=42
42:7=6
6=6