Question

Resolva as equações,sendo U=Q:

a)6X=2X+16


b)2x-5=x+1


c)2x+3=x+4


d)5x+7=4x+2


e)4x-10=2x+2


f)4x-7=8x-2


g)2c+1=4x-7​

Answer 1

Resposta:

A) 6x - 2x = 16

4x = 16

x = 16

4

x = 4

B) 2x - x = 1 + 5

1x = 6

x = 6

1

x = 6

C) 2x - x = 4 - 3

1x = 1

x = 1

1

x = 1

D) 5x - 4x = 2 - 7

1x = -5

x = -5

1

x = -5

E) 4x - 2x = 2 + 10

2x = 12

x = 12

2

x = 6

F) 4x - 8x = 2 + 7

-4x = 9 . (-1)

x = -9

4

x = -2.25

G) 2x - 4x = -7 -6

-2x = -13 . (-1)

x = 13

2

x = 6.5