Question

Simplify:
4(r + 1) + 3r

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

Answer 1

• 
  `\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.