Question

pablo wrote the expression shown. \\(10(7 - 7a) - 5a\\) which expression is equivalent to pablo’s expression? \\(46a + 16\\) \\(70a + 16\\) \\(-5a + 7\\) \\(70 - 75a\\)

Explanation:

Step1: Expand the parentheses

$10(7-7a) -5a = 10\times7 - 10\times7a -5a$

Step2: Calculate the products

$=70 -70a -5a$

Step3: Combine like terms

$=70 + (-70a-5a) = 70 -75a$

Answer:

$70 - 75a$