Answer:
The Correct option is A. 6x +3y
Therefore,
[tex]3x+3(x+y)[/tex]
is Equivalent to
[tex]6x+3y[/tex]
Step-by-step explanation:
Which expressions are equivalent to 3x+3(x+y)
Distributive property:
The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.
For Example A(B+C)=AB + AC
Therefore,
[tex]3x+3(x+y)[/tex]
Applying Distributive Property we get
[tex]3x+3\times x+3\times y[/tex]
[tex]3x+3x+3y[/tex]
Combining like terms we get
[tex]6x+3y[/tex]
Therefore,
[tex]3x+3(x+y)[/tex]
is Equivalent to
[tex]6x+3y[/tex]