Question

Calculeaza:2a+38+c stiind ca;a=(5+5+2-2:2)×2;b=[36-16/(25/5-12/3)]/5-4:c=7+3×[2-27/(5×5+2/1)]

Answer 1

a= (5+5+2-2:2)×2

a=(5+5+2-1)×2

a=11×2

a=22

b=[36-16/(25/5-12/3)] /5-4

b=[36-16/(5-4)]/5-4

b=(36-16/1)/5-4

b=20/5-4

b=4-4

b=0

c=7+3×[2-27/(5×5+2/1)]

c=7+3×[2-27/(25+2)]

c=7+3×(2-27/27)

c=7+3×(2-1)

c=7+3×1

c=7+3

c=10

2a+38+c=

2×22+38+10=

44+38+10=

82+10=

92