Question

Se dau nr: a= 6*7-5*6+2*3;b=4*8+3*4-4*4;c=2*9+3*9; calculati:a+b-c

Answer 1

a = 6•7 - 5•6 + 2•3
a = 42 - 30 + 6
a = 12 + 6
a = 18.

b = 4•8 + 3•4 -4•4
b = 32 + 12 - 16
b = 44 - 16
b = 28.

c = 2•9 + 3•9
c = 18 + 27
c = 45.



a + b - c =
18 + 28 - 45 = 46 - 45 = 1.




I hope I helped you :)

Answer 2

a= 42-30+6
a= 18
b= 32+12-16
b= 28
c= 18+27
c= 45
a+b-c= 18+28-45
a+b-c= 46-45
a+b-c= 1
Sper că te-am ajutat!