Question

sendo U=Q resolva as equaçoes

a. x/8=15/3+2x/3

b. 7x-4=5x +6

c. x/8=4

d. 5x+8=24

e. -9+3y-1=y+7

f. -(p+4)+3 (1+p)-p=2(1+2p)

g. 5(x+3)-x=x-14

h. 2x/3+3=2x/3-3

Answer 1

a. x/8=15/3+2x/3

x/8 - 2x/3= 15/3

24x-12x/24=5

12x/24= 5

0,5x = 5

x= 5/0,5

x=10

b. 7x-4=5x +6

7x - 5x = 6 + 4

2x= 10

x= 10/2

x= 5

c. x/8=4

x= 4.8

x= 32

d. 5x+8=24

5x= 24 - 8

5x= 16

x= 16/5

e. -9+3y-1=y+7

3y - y= 7 +1 +9

2y= 8 + 9

2y= 17

y= 17/2

y= 8,5

f. -(p+4)+3 (1+p)-p=2(1+2p)

-p - 4 + 3 + 3p - p = 2 + 4p

-p + 3p - p - 4p= 2 + 4 - 3

-3p = 2

p= 2 / - 3

g. 5(x+3)-x=x-14

5x + 15 - x =x - 14

5x - X - X = - 14 - 15

3x= - 29

x= 29/3

h. 2x/3+3=2x/3-3

2x/3 - 2x/3= - 3-3

0= - 9