Question

determine o 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+9 l)17x-7x=x+18 m)x+x-4=17x+18 n)x+2x+3-5x=4x-9 o)5x+6x-16=3x+2x+4 p)5x+4=3x-2x+4

Answer 1

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
4x = -5
x = 5 ÷ 4
x = 1,25

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

h) 9x + 9 + 3x = 15
12x = 15 - 9
12x = 6
x = 6 ÷ 12
x = 0,5

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
x = -11

k) 5x - 3 + x = 2x + 9
6x - 2x = 9 + 3
4x = 12
x = 12 ÷ 4
x = 3

l) 17x - 7x = x + 18
10x - x = 18
9x = 18
x = 18 ÷ 9
x = 2


m) x + x - 4 = 17x + 18
2x - 17x = 18 + 4
-15x = 22
15x = -22
x = -22 ÷ 15
x =~ 1,47 (aproximadamente)

n) x + 2x + 3 - 5x = 4x - 9
-2x - 4x = -9 - 3
-6x = -12
6x = 12
x = 12 ÷ 6
x = 2

o) 5x + 6x - 16 = 3x + 2x + 4
12x - 5x = 4 + 16
7x = 20
x = 20 ÷ 7
x = 2,8571428571

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

Answer 2

Resposta:

oi espero que goste

Explicação passo-a-passo:

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

4x = -5

x = 5 ÷ 4

x = 1,25

g) 2x + 1 = 4x - 7

2x - 4x = -7 - 1

-2x = -8

2x = 8

x = 8 ÷ 2

x = 4

h) 9x + 9 + 3x = 15

12x = 15 - 9

12x = 6

x = 6 ÷ 12

x = 0,5

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

x = -11

k) 5x - 3 + x = 2x + 9

6x - 2x = 9 + 3

4x = 12

x = 12 ÷ 4

x = 3

l) 17x - 7x = x + 18

10x - x = 18

9x = 18

x = 18 ÷ 9

x = 2

m) x + x - 4 = 17x + 18

2x - 17x = 18 + 4

-15x = 22

15x = -22

x = -22 ÷ 15

x =~ 1,47 (aproximadamente)

n) x + 2x + 3 - 5x = 4x - 9

-2x - 4x = -9 - 3

-6x = -12

6x = 12

x = 12 ÷ 6

x = 2

o) 5x + 6x - 16 = 3x + 2x + 4

12x - 5x = 4 + 16

7x = 20

x = 20 ÷ 7

x = 2,8571428571

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

5x - 5x = 0

0 = 0