Question

não precisa de cálculo só as respostas pfvv​

Answer 1

Resposta:

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

x=-5/4

g)2x+1=4x-7

2x-4x=-7-1

-2x=-8

x=-8/-2

x=4

h)9x+9+3x=15

12x=15-9

12x=6

x=6/12

x=1/2  

i)16x-1=12x+3

16x-12x = 3+1

4x=4

x=4/4

x=1

j)3x-2=4x+9

3x-4x=9+3

-x = 12(-1)

x = - 12  

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

5x+x-2x=9+3

4x=12

x=12/4

x=3

m) 17x-7x=x+18  

17x-7x-x=18

9x=18

x=18/9

x=2

Explicação passo-a-passo: