Question

3- Calcule as expressões :

a) X+X+2X+4 =


b) 3A+2A-4+10=


c) 15+3B+20B-5=

d) 18D+6-6D+12=

e)24Y-6Y+20=​

Answer 1

Explicação passo-a-passo:

a)

X+X+2X+4

1+1+2.1+4

2+2+4

4+4

8

b)

3a+2a-4+10

3.1+2.1-14

3+2-14

5-14

-9

c)

15+3b+20b-5

15+3.1+20.1-5

15+3+20-5

18+15

33

d)

18d+6-6d+12

18.1+6-6.1+12

18+6-6+12

24-18

6

e)

24y-6y+20

24.1-6.1+20

24-6+20

18+20

38

espero ter ajudado