Answer:
-6g
Step-by-step explanation:
If you find a first you will be able to find b a little faster then it is super easy after that you got this!
<span>3(a+(6x)y) was clearly multiplied out as seen by the 3a and 18xy, so the distributive property was used there. In addition, the commutative and associative properties state that you can rearrange sums, so those were used too </span><span />
