Can someone with question. i'll give brainliest answer if you me.

Step-by-step explanation:

Step 1:

(3x + 12y) + (10x - 5y)

{Distributive property A(B+C)=AB+AC}

Step 2:

(3x + 12y) + (-5y + 10x)

{Commutative property A+B = B+A}

Step 3:

3x + (12y - 5y) + 10x

{Associative property A+(B+C)=(A+B)+C}

Step 4:

3x + 10x + (12y - 5y)

{Commutative property A+B = B+A}

Step 5:

13x + 7y

{Simplification}

hm let me think hm think think hm think yes

ranks (& how to earn them):

-beginner (needs at least 0 points & 0 brainliest answers)

- hand (needs at least 100 points & 0 brainliest answers)

-ambitious   (needs at least 250 points & 0 brainliest answers)

-virtuoso (needs at least 500 points & 5 brainliest answers)

-expert   (needs at least 1,000 points & 10 brainliest answers)

-ace (needs at least 3,000 points & 15 brainliest answers)

-genius   (needs at least 15,000 points & 50 brainliest answers)

how to award brainliest:

you must wait until 2 people answer to award brainliest. i'm pretty sure that it should be next to the "" and "comments" buttons.