Question

$a) \\ \frac{3x + 15}{2} + \frac{x}{6} = 8 + x$
$b) \\ \\ \frac{2y + 1}{4} - \frac{4 - 5}{3} - \frac{y}{2} = \frac{1}{2}$
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Answer 1

Resposta:

a) 3x+15/2+x/6=8+x

9x +45+ x = 48 + 6x

9x-6x +x= -45+48

4x= 3

x= 3/4

S={3/4}

MMC(2,6)= 2*3=6

2,6 | 2

1, 3 | 3

1, 1

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b) 2y+1/4 -4y-5/3-y/2=1/2

6y+3-16y+20-6y= 6

-10y -6y= 6-3-20

-16y= 6-23

-16y= - 17

y= -17/-16

y= 17/16

S={17/16}

MMC(2,3,4,2)= 2*2*3=12

2,3,4, 2 | 2

1, 3, 2, 1 | 2

1, 3, 1, 1 | 3

1, 1, 1,. 1