Question

40 pontos por 4 questões me ajudemm pfvrr

b) 3(+-2) = 4(+13)

c) 2(+-1)-(+-1) = 0

d) 5(+1)-3(++2) = 0

e) 13+4(2+-1) = 5(++2)

Parece enorme mee desculpem​

Answer 1

Explicação passo-a-passo:

b)3(+-2)=4(+13)

+6=+52

×=52-6

×=46

c)2(+-1)-(+-1)=0

2-2=0

×=0-2+2

×=-2+2

×=0

d)5(+1)-3(++2)=0

5-6=0

-6=0-5

-6=-5

×=-5+6

×=1

e)13+4(2+-1)=5(++2)

13+8-1=10

21-1=10

20=10

×=10-20

×=-10