Answer:
−3k+6y
Explanation:
Apply the distributive property.
5(2y)+5 (−3k)+4(3k−y)
Multiply 2 by 5.
10y+5(-3k)+4(3k−y)
Multiply −3 by 5.
10y−15k+4(3k−y)
Apply the distributive property.
10y−15k+4(3k)+4(−y)
Multiply :3 by 4
10y−15k+12k+4(−y)
Multiply: −1 by 4
10y−15k+12k−4y
Simplify by adding terms.
Subtract: 4y from 10y
−15k+12k+6y
Add: −15k and 12k
−3k+6y