Question

h) 9x =18 R=
i) 35x=-105 R=
J) 7x-1=13 R =
k) 6x-10 = 2x+14 R =
i) 6x = 2x+ 28 R=
m) 3 (x+2) = 15 R=
n) 2 ( x - 1 ) -7 =16 R =

Answer 1

h)
9x=18
x=18/9
x=2

i)
35x=-105
x=-105/35
x=-3

j)
7x-1=13
7x=13+1
7x=14
x=14/7
x=2

k)
6x-10=2x+14
6x-2x=14+10
4x=24
x=24/4
x=6

l)
6x=2x+28
6x-2x=28
4x=28
x=28/4
x=7

m)
3.(x+2)=15
3x+6=15
3x=15-6
3x=9
x=9/3
x=3

n)
2.(x-1)-7=16
2x-2-7=16
2x=16+2+7
2x=25
x=25/2

Answer 2

h)9x=18
-> X=18-9
-> X=9

i) 35x= -105
-> X= -105:35
-> X=-3

j)7x-1=13
-> 7x=13+1
-> 7x=12
-> x=12:7
-> x=1, 714, 285, 714, 2

(bota como resposta da J
assim
x=1, 71....)