142k views
4 votes
Simplify:
4(r + 1) + 3r

A) 4r + 4
B) 5r + 1
C) 7r + 1
D) 7r + 4

User Rhathin
by
9.1k points

1 Answer

5 votes

Answer:


  • \boxed{\sf{D. \quad 7r+4}}

Explanation:

Use a distributive property.

Distributive property:


\Longrightarrow:\sf{A(B+C)=AB+AC}

⇒ 4(r+1)+3r

To multiply, first expand the form.

⇒ 4*r=4r

⇒ 4*1=4

Rewrite the problem down.

⇒ 4r+4+3r

Combine like terms.

⇒ 4r+3r+4

Solve.

Add similar to elements.

Add the numbers from left to right.

⇒ 4r+3r=7r

⇒ = 7r+4

  • Therefore, the correct answer is D. 7r+4.

I hope this helps you! Let me know if my answer is wrong or not.

User Gorkem Ercan
by
8.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.