Question

A) x-y (para x =5 e y = - 4) .....

B)3x + a(para x = - 1 e m = - 3) .....

c)2x+m (para x = - 1 e m = - 3) .....

d)m -2 a (para m = 3 e a = - 5) .....

e)x+y (para x = 1\2 e y = 1\5) .....

f)a sobre a - b (para a = 3 e b= - 1\2) .....

g)a sobre a - 5 a (para a = - 2) .....

h)x sobre 2 - 2y (para a = - 2) .....

i)3a sobre 2 - b sobre 2 (para = - 2 e b = - 7) .....

j) 5a sobre 2 + 3 ab (para a = 3 e b = 4) .....

k)a sobre 2 + 4a (para a = 2\3) ..... me ajudem pfvvv !!

Answer 1

A) 5-(-4)= 5+4= 9

B)3.(-1)+ -3= -3-3= -6

C)2.(-1)-3= -1-3=-4

D)3-2.(-5)= 3+ 10=13

E)1/2+1/5= 5+2/10= 7/10

F)3/3-(-1/2)=3/3+1/2= 3/6+1/2= 3/7/2=3.2/7=6/7

G)-2/-2-5.(-2)=-2/-2+10= 2/8=1/4

H)?

I)3.(-2)/2-(-7)/2= -6/2+7/2=-6/9/2=-6.2/9=-12/9=-4/3

J) 5.3/2+3.4.4=15/2+48=15/50= 3/10

K)2/3/2+4.2/3= 2/3/2+8/3=2/3/14/3=2.3/3.14=6/42=1/7