Question

A)x/2+3x/5=1
B)2(p/4-2p/9)=-1/2
C)3y+4y/7-2=48
D)n/3-8=7n/12+6

Me ajudem
te que ser passo a passo ​

Answer 1

de acordo com o enunciado

a)

x/2 + 3x/5 = 1

mmc = 10

5x + 6x = 10

11x = 10

valor de x:

x = 10/11

b)

2*(p/4 - 2p/9) = -1/2

p/2 - 4p/9 = -1/2

mmc = 18

9p - 8p = -9

valor de p:

p = -9

c)

3y + 4y/7 - 2 = 48

3y + 4y/7 = 50

mmc = 7

21y + 4y = 350

25y = 350

valor de y:

y = 350/25

y = 14

d)

n/3 - 8 = 7n/12 + 6

4n/12 - 7n/12 = 6 + 8

-3n/12 = 14

n/4 = -14

valor de n:

n = -56