Question

resolva as equações

me ajudem!! quero conta

a) 19x - 43 = 65

b) 23x - 16= 14-17x

c) 10y - 5 (1+y)= 3 (2y-2) - 20

d) 3 (x + 4) + 2 ( x+2 ) = 2x+ 10

e) 4 (x+6) - x=5x

Answer 1

a)r=19x=65+43. x=108/19. x=5.6842...
b)r=23x+17x=14+16. 40x=30. x=30/40. x=0,75
c)r=10y-6y=6y-6+20. 10y-6y-6y=-6+20. -2y=14. y=14/-2. x=-7
d)3x+12+2x+4=2x+10. 3x+2x-2x=10-4-12. 3x=-6. x=-6/3. x=-2
e)4x+24-x=5x. 4x-x-5x=24. -2x=24. x=24/-2. x=-7
espero ter ajudado...