Question

6(3a-1)+3(2a+3)=1-7a

Answer 1

6(3a-1)+3(2a+3)=1-7a

18a-6+6a+9=1-7a

18a+6a+7a=1+6-9

31a=-2

a=-2/31

Answer 2

Step-by-step explanation:

$\bf \: 6(3a-1)+3(2a+3)=1-7a \\ \\ \bf \: 18a - 6 + 6a + 9 = 1 - 7a \\ \\ \bf \: 24a + 3 = 1 - 7a \\ \\ \bf \: 24a + 7a = 1 - 3 \\ \\ \bf \: 31a = - 2 \\ \\ \bf \red{ a = - \frac{2}{31} }$