Question

Ajudem pff Afazer a equação

a)x-8=-10
b)x+9=-1
c)3 x=12
d)9 x=18
E)35 x=-105
F)7 x-1=13
g)6 x -10=2 x+14

H)6 x=2x+28
I) 3(x+2)=15
J)2 (x-1)-7=16
K)7 (x-2)=5(x=3)
L)2 (x-6)=-3(5+x)
M) x/2 + x/4 =1/2
N) x/2 - x/4=5

Muito Obrigada !!

Answer 1

x-8=-10
x=-10+8
x=-2

x+9=1
x=-1-9
x=-10

3x=12
x=12/3
x=4

9x=18
x=18/9
x=2

35x=-105
x=-105/35
x=-3

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

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

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

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

2(x-1)-7=16
2x-2-7=16
2x-9=16
2x=16+9
2x=25
x=25/2
x=12,5

7(x-2)=5(x=3)
7x-14=5x+15
7x-5x=15+14
2x=29
x=29/2
x=14,5

2(x-6)=-3(5+x)
2x-12=-15-3x
2x+3x=-15+12
5x=-3
x=3/5
x=0,6

x/2+x/4=1/2
(2x-x)/4=2/4
2x-x=2
x=2

x/2-x/4=5
(2x-x)/4=5
2x-x=5
x=5