Question

Me ajudem porfavo: A) 6x+9=3x+4 B) 9x-18= -x + 2 C) 2x - 3= -4x + 15

Answer 1

Resposta:

a) 6x + 9 = 3x + 4

6x - 3x = 4 - 9

3x = -5

x = -5/3

b) 9x - 18 = -x + 2

9x + x = 2 + 18

10x = 20

x = 20/10

x = 2

c) 2x - 3 = - 4x + 15

2x + 4x = 15 + 3

6x = 18

x = 18/6

x = 3