Question

ALGUÉM ME AJUDA PFV!​

Answer 1

Resposta:

a) 2x + 6 = x + 18

2x - x +6 = 18

2x-x=18-6

x=18-6

x=12

b)5x-3=2x+9

5x-2x-3=9

5x-2x=9+3

3x=9+3

3x=12

x=4

c) 3(2x-3)+2(x+1)=3x+18

6x-9+2x+2=3x+18

8x-7=3x+18

8x-3x=18+7

5x=25

x=5

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

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

5x-15=4x+9

5x-4x=9+15

x=24