Question

i) a+7/3=-3x
ii)2/3y+5=4/2y
iii) 14/9+x=2x-2/3
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Answer 1

Answer:

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1 )

$x + \frac{7}{3} = - 3x \\ 4x = - \frac{7}{3} \\ x = \frac{ - 7}{12}$

2)

$\frac{2}{3y} + 5 = \frac{4}{2y} \\ 5 = \frac{4}{2y} - \frac{2}{3y} \\ 5 = \frac{12 + 4}{6y} \\ 30y = 16 \\ y = \frac{16}{30} \\ y = \frac{8}{15}$

3)

$\frac{14}{9} + x = 2x - \frac{2}{3} \\ \frac{14}{9} + \frac{2}{3} = x \\ x = \frac{14 + 6}{9} \\ x = \frac{20}{9}$

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Answer 2

Answer:

(i)  -a/3 -7/9

(ii) 4/15

(iii)20/9

Step-by-step explanation:

(i)  a+7/3= -3x

3a+7= -9x   (by multiplying 3 both side)

x=3a/-9  + 7/-9

x= -a/3 -7/9

(ii) 2/3y + 5 = 4/2y

4+30y=12

y=(12-4)/30

y=8/30 =4/15

(iii)  14/9+x=2x-2/3

2x-x=14/9 + 2/3

x=14/9 + 6/9 =20/9