Question

6•a-2•b+c daca a=7•2-3•3-5•6. b=63:7+5•4-3•3 c=42:6+5•6+3•1

Answer 1

Răspuns:

a=7×2-3×3-5×6

a=14-9-30

a=5-30

a=-25

b=63÷7+5×4-3×3

b=9+20-9

b=29-9

b=20

c=42÷6+5×6+3×1

c=7+30+3

c=37+3

c=40

6×a-2×b+c=

=6×(-25)-2×20+34=

=(-150)-40+40=

=(-190)+40=-150

Answer 2

Răspuns:

-150

Explicație pas cu pas:

6a-2b+c, a= 7·2-3·3-5·6, b= 63:7+5·4-3·3, c= 42:6+5·6+3·1

a=14-9-30=5-30=(-25)

b=9+20-9=9+11=20

c=7+30+3=10+30=40

6·(-25)-2·20+40=(-150)-40+40=(-150)-0=(-150)

Succes! :)