Question

Resolva As expressões abaixo
A) 9- 2 + 3a
B) 3. (2+b) - 10
C) 2 (x+2) + 7. 2
E pra hj

Answer 1

Resposta:

A)7+3a=a=3-7=a=-4

B)6+3b-10

3b=-10-6

3b=-16

b =-16/3

C)2×+4+14

2×=14-4

2×=10

×=10/2

×=5