Question

Determine X : a) 6x=2x+16
b)2x-5=x+1
c)2x+3=x+4
d)5x+7=4x+10
e)4x-10=2x+2
f)4x-7=8x-2
g)2x+1=4x-7
h)9x+9+3x=15
i)16x-1=12x+3
j)3x-2=4x+9
k)5x+-3+x=2x+18
l)17x+7x=x+18
m)x+x-4=17-2
n)x+2x+4-5x=4x-9
o)5x+6x=3x+2x-4
p)5x+4=3x-2x+4

Answer 1

a) 6x - 2x = 16
4x = 16
x = 16 ÷ 4
x = 4

b)2x-5=x+1
2x - x = 5 + 1
x = 6

c)2x+3=x+4
2x - x = -3 + 4
x = 1

d)5x+7=4x+10
5x - 4x = -7 + 10
x = 3

e)4x-10=2x+2
4x - 2x = 10 + 2
2x = 12
x = 12 ÷ 2
x = 6

f)4x-7=8x-2
4x - 8x = 7 - 2
-4x = 5
-x = 5÷4
-x = 1,25

g)2x+1=4x-7
2x - 4x = -1 -7
-2x = -8 (-1)
2x = 8
x = 4

h)9x+9+3x=15
9x + 3x = 15 - 9
12x = 6
x = 12÷6
x = 2

i)16x-1=12x+3
16x - 12x = 1 + 3
4x = 4
x = 1

j)3x-2=4x+9
3x - 4x = 2 + 9
-x = - 7 (-1)
x = 7

k)5x+-3+x=2x+18
5x + x - 2x = -3 + 18
4x = 15
x = 15÷4
x = 3, 75

l)17x+7x=x+18
17x + 7x - x = 18
11x = 18
x = 18÷11
x = 1,6


m)x+x-4=17-2
2x = 4 + 17 - 2
2x = 19
x = 19÷2
x = 9,5


n)x+2x+4-5x=4x-9
x + 2x - 5x - 4x = -9 -4
-6x = - 13 (-1)
6x = 13
x = 13÷6
x = 2,1

o)5x+6x=3x+2x-4
5x - 3x - 2x + 6x = -4
6x = -4

p)5x+4=3x-2x+4
5x - 3x + 2x = -4 +4
0

As respostas que deram decimal eu não tenho certeza se estam certas, mas eu tentei ajudar.

Answer 2

A)
6x = 2x + 16
6x - 2x = 16
4x = 16
x = 16/4
x = 4

B)
2x-5=x+1 
2x - x = 1 + 5
x = 6


C)
2x+3=x+4 
2x - x = 4 - 3
x = 1

D)
5x+7=4x+10 
5x - 4x = 10 - 7
      x = 3

E)
4x-10=2x+2
4x - 2x = 2 + 10
2x = 12
  x = 12/2
  x = 6

F)
     4x-7=8x-2 
4x - 8x = -2 + 7
      -4x = 5      .(-1)
       4x = -5
         x = -5/4

G)
2x+1=4x-7
2x - 4x = -7 - 1
     -2x = -8        .(-1)
       2x = 8
        x = 8/2
        x = 4

H)
9x+9+3x=15
9x + 3x = 15 - 9
12x = 6
   x = 6/12
   x = 3/6
   x = 1/3

I)
16x-1=12x+3
16x - 12x = 3 + 1
4x = 4
  x = 4/4
  x = 1

J)
3x-2=4x+9 
3x - 4x = 9 + 2
     -x = 11   .(-1)
      x = -11

K)
5x+-3+x=2x+18
5x + x - 2x = 18 + 3
6x - 2x = 21
      4x = 21
        x = 21/4

L)
17x+7x=x+18 
24x - x = 18
23x = 18
    x = 18/23

M)
x+x-4=17-2 
2x = 15 + 4
2x = 19
  x = 19/2

N)
x+2x+4-5x=4x-9 
3x - 5x - 4x = -9 - 4
3x - 9x = - 13
     -6x = -13     .(-1)
      6x = 13
        x = 13/6

O)
5x+6x=3x+2x-4 
11x - 3x - 2x = -4
11x - 5x = -4
6x = -4
  x = -4/6
  x = -2/3

P)
           5x+4=3x-2x+4
5x - 3x + 2x = 4 - 4
       2x + 2x = 0
              4x = 0
               x = 0/4
               x = 0
Espero ter ajudado