Question

encuentra el valor de x
a) 2x + 8x = 2x + 64
b) 2x/ 4 = 20
c) 7x - 3 x + 8 = 2x + 20

ayudenmeee es para las 7:00

Answer 1

2x + 8x = 2x + 64

10x = 2x + 64

10x - 2x = 64

8x = 64

x = 64/8

x = 8

2x/ 4 = 20

2x = 20(4)

2x = 80

x = 80/2

x = 40

7x - 3 x + 8 = 2x + 20

4x + 8 = 2x + 20

4x -2x = 20 - 8

2x = 18

x = 18/2

x = 9

Eternamente axllxa