Question

1. which of the expression is equivalent to 3(x - 7)? 3x - 7 3x + 7 3x + 21 3x - 21

Explanation:

Step1: Apply distributive property

$3(x - 7)=3\times x-3\times7$

Step2: Perform multiplications

$3\times x - 3\times7=3x-21$

Answer:

$3x - 21$ (the last option in the given choices)