Question

pls solve this for me​

Answer 1

Answer:

-1/7

Step-by-step explanation:

(3a+15-2a-2)/18 = (a+3)/4

4(a+13) = 18(a+3)

4a+52 = 18a+54

-14a = 2

a = -2/14

a= -1/7

Answer 2

Answer:

a = -1/7

Step-by-step explanation:

( (a+5)/6 ) - ( (a+1)/9 ) = (a+3)/4

taking LCM on LHS

=> { (a+5)×9 - (a+1)×6) } ÷ (6×9 ) = (a+3)/4

=> { 9a + 45 - 6a -6 } ÷ 54 = (a+3)/4

=> (3a + 39) = 54(a+3)/4

=> (a+13) 3 = (a+3)(27/2)

=> 2(a+13) = (a+3) (27/3)

=> 2a + 26 = (a+3)9

=> 2a + 26 = 9a + 27

=> 7a = -1

=> a = -1/7