Sagot :
A= - 3 - 40
= - 43
B = 7 + 12 + 2,5
= 21,5
C = - 4 + 14 / - 6 - 4
=10/-10
C=-1
= - 43
B = 7 + 12 + 2,5
= 21,5
C = - 4 + 14 / - 6 - 4
=10/-10
C=-1
A = –3+8´x(–5)
=-3+(-40)
=-3-40
=-43
B = 7–3´x (–4)+2,5
=7-(-12)+2.5
=7+12+2.5
=21.5
[tex]C= \frac{-4-7x(-2)}{2x(-3)-4} = \frac{-4-(-14)}{-6-4} = \frac{-4+14}{-10} = \frac{-10}{-10} =1[/tex]
D =-9+-x[tex] \frac{30}{5} [/tex]x(-3)+(-3)x(-5)=
=-3+(-40)
=-3-40
=-43
B = 7–3´x (–4)+2,5
=7-(-12)+2.5
=7+12+2.5
=21.5
[tex]C= \frac{-4-7x(-2)}{2x(-3)-4} = \frac{-4-(-14)}{-6-4} = \frac{-4+14}{-10} = \frac{-10}{-10} =1[/tex]
D =-9+-x[tex] \frac{30}{5} [/tex]x(-3)+(-3)x(-5)=