Question

E) 5x -27 = -4x
F) 9x + 5 = 4x

Answer 1

Resposta:

5x - 27 = -4x

5x + 4x = 27

9x = 27

X = 27 : 9

X = 3

9x + 5 = 4x

9x - 4x = - 5

5x = - 5

X = - 5 : 5

X = - 1

Answer 2

Resposta:

E) 5x + 4x = 27

9x= 27

x= 27 ÷ 9

x= 3

F) 9x - 4x = -5

5x = -5

x= -5 ÷ 5

x= -1