3(5-4a)-(12a-7) если а = 0.5

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

Comments

spasibo balsoe!

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владей!

Answer 2

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

Comments

spasibo bolshoe!