Question

2a + 3 - 4 (a+3) equals to 9​

Answer 1

Answer:

2a+3-4(a+3)=9

2a+3-4a-12=9

-2a=9+12-3

-2a=18

a=18/-2

a=-9

Answer 2

Answer:

$= > 2a + 3 - 4(a + 3) = 9 \\ \\ = > 2a + 3 - (4 \times a) - (4 \times 3) = 9 \\ \\ = > 2a + 3 - 4a - 12 = 9 \\ \\ = > 2a - 4a - 9 = 9 \\ \\ = > - 2a = 9 + 9 \\ \\ = > - 2a = 18 \\ \\ = > 2a = - 18 \\ \\ = > a = - \frac{18}{2} \\ \\ = > a = - 9$