((7 * 7) -7):7=6
((7 * 7) + 7):7 =8
((7 * 7) -7)*7=294
(7:7) +7+7=15
(7*7-7):7=6
7:7+(7+7)=15
(7*7+7):7=8
(7*7-7)*7=294
((7 * 7) -7):7=6
((7 * 7) + 7):7 =8
((7 * 7) -7)*7=294
(7:7) +7+7=15
(7*7-7):7=6
7:7+(7+7)=15
(7*7+7):7=8
(7*7-7)*7=294