?=24
MindGenius Member May 15, 2023 #89 10 + 10 + 10 = 30 7 x 10 + 7 = 77 2 x 10 + 2 = 22 10 + 2 x 7 = 24 And the hidden number is the 24
WhyN0t Well-Known Member May 15, 2023 #99 24 Demonstration: x+x+x=30 3x=30 x=10 xy+y=77 10y+y=77 10y=77-y y=7.7-y/10 y+y/10=7.7 11y=77 y=7 z*x+z=22 10z+z=22 11z=22 z=2 x+zy=? 10+2*7=10+14=24
24 Demonstration: x+x+x=30 3x=30 x=10 xy+y=77 10y+y=77 10y=77-y y=7.7-y/10 y+y/10=7.7 11y=77 y=7 z*x+z=22 10z+z=22 11z=22 z=2 x+zy=? 10+2*7=10+14=24