Question

a) 7x+5=68-2
alguem me ajuda.........

Answer 1

A) 7x+5= 68-2

7x+5= 66

7x= 66-5

7x= 61

x=61/7

B) 5x-10/2 = 10-5x-5/3

mmc=6

30x - 30 = 60 - 30x - 10

30x + 30x = 60 - 10 + 30

60x = 80

x = 80/60

x= 8/6

x= 4/3