Question

Resolva as equações:

b)5×-3=2×+9

c)2×+3(×-5)=4×+9

Answer 1

→ Cálculo :

B) 5x - 3 = 2x + 9

5x - 2x = 9 + 3

3x = 12

x = 12 ÷ 3

x = 4

 

C) 2x + 3(x - 5) = 4x + 9

2x + 3x - 15 = 4x + 9

5x - 15 = 4x + 9

5x - 4x = 9 + 15

1x = 24

x = 24