Question

me ajudem pfv!!!!!!!!!

Answer 1

1°  2x+1/4=5x-1/6

6(2x+1)=4(5x-1)

12x+6=20x-4

6+4=20x-12x

x= 10/8

x=5/4.                       4.10=8y

2° 6/3=12/8               y=40/8    

48=12x                     y=5

x=4


3°  x+y+z/40+30+20=180/90=2
x=40.2=80
y=30.2=60
z=20.2=40

4°  3(x-1)=2x(x+3)

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

5° 12/0,6=x
x=20


6°  AD=2+3+5

AD=10

10/13=2/AB

10AB=13.2
AB=26/10
AB=2,6.

Espero ter ajudado!!!