Question

help me porfavorzinho

Answer 1

b) 8x + 4 = 2x + 10

8x – 2x = 10 – 4

6x = 6

x = 6/6

x = 1

 

c) 3x – x + 20 = 24

2x = 24 – 20

2x = 4

x = 4/2

x = 2

 

d) 40 + 8x = 80

8x = 80 – 40

8x = 40

x = 40/8

x = 5

 

e) x + x – 13 = 8 – 2

2x = 6 + 13

2x = 19

x = 19/2

Bons estudos!