My answer: 24
WhyN0t Master Sergeant May 15, 2023 #31 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