Question

quanto é
x+3=21
11-4x=x
2x+8x-4=2
52-22x+25=65-24

Answer 1

Resposta:

x+ 3 = 21

x= -3 21

x = 18

11-4x = x

-4x -x = -11

-5x = 11

x= 11/5

2x + 8x -4 = 2

10x = 2 + 4

10x = 6

x = 6/10

x= 3/5

52 -22x + 25 = 65 -24

-22x = 65 -24 -52 -25

-22x = 65 -101

-22x = - 36

x= -36/22

x= 18/11