Question

3(5-4a)-(12a-7) если а = 0.5

Answer 1

3(5-4a)-(12a-7)=15-12a-12a+7=-24a+22
при а=0,5
-24*0.5+22=-12+22=10

Answer 2

spasibo balsoe!

Answer 3

владей!

Answer 4

3 (5-4*0.5)-(12*0.5-7)=10

Answer 5

spasibo bolshoe!