Question

question 19
simplify the following expression using distribution.

• 3x + 4(3 + x)
• 9x + 3
• 4x + 2

x + 12

• x - 1

Explanation:

Step1: Apply distributive property

$$-3x + 4(3 + x)=-3x+(4\times3)+(4\times x)$$
$$=-3x + 12+4x$$

Step2: Combine like - terms

$$(-3x+4x)+12$$
$$=( - 3 + 4)x+12$$
$$=x + 12$$

Answer:

C. \(x + 12\)