Question

gentte me ajudaaa ee para amanha??? pfvoooooor

Answer 1

mmc
18,40

18,40/2
9,20/2
9,10/2
9,5/3
3,5/3
1,5/5
1,1.....= 2.2.2.3.5=120

25,35

25,35/5
5,7/5
1,7/7
1,1...=5.5.7= 175

72,18

72,18/2
36,9/2
18,9/2
9,9/3
3,3/3
1,1....2.2.2.3.3= 72

46,51

46,51/2
23,51/23
1,51/51
1,1..2.23.51= 2346

8,12,18

8,12,18/2
4,6,9/2
2,3,9/2
1,3,9/3
1,1,3/3
1,1,1...=2.2.2.3.3=72

25,40,60

25,40,60/2
25,20,30/2
25,10,15/2
25,5,15/3
25,5,5/5
5,1,1/5
1,1,1...=2.2.2.3.5.5=600

EQUAÇÕES


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

b)3.(x-1)=2x+5
3x-3=2x+5
x=8

c)x/2,5=30/15
x/2,5=2
x=2.2,5
x=5

d)x-2/3=x+2/4

(x-2).4=(x+2).3

4x-8=3x+6
4x-3x=6+8
x=14

:)