I need help with all the questions you see

1/ -6=12+1/3a

Rewrite the equation as 12+1/3a=−6.

12+1/3a= −6

Combine 1/3 and a.

12+a/3= −6

Move all terms not containing a to the right side of the equation.

a/3= −18

Multiply both sides of the equation by 3.

3⋅a/3=3⋅ −18

Simplify both sides of the equation.

a= −54

2/ -6 =12 -1/3a

Rewrite the equation as 12−13a=−6.

12−1/3a=−6

Combine a and /13.

12−a/3=−6

Move all terms not containing a to the right side of the equation.

−a/3=−18

Multiply both sides of the equation by −3.

−3⋅(−a/3)=−3 ⋅−18

Simplify both sides of the equation.

a=54

Step-by-step explanation:

109 is the nearest whole number/final answer! : )