Question

me ajudem por farfozinho​

Answer 1

Resposta:

1a) 4x+2=38

4x=38-2

4x=36 x=36/4 x=9

b) 9x=6x+12

9x-6x=12

3x=12 x=12/3 x= 4

c) 5x-1=3x+11

5x-3x=11+1

2x=12 x=12/2 x=6

d) 2x+8=x+13

2x-x=13-8 x=5

2a) 6+2x= 82

2x=82-6

2x=72. x=72/2. x=38