Question

Solution.
5(4x + 7)-2x = ________+ 21

Answer 1

18x + 14

Explanation:

First, we need to distribute the 5:

5(4x + 7) - 2x = __ + 21

20x + 35 - 2x = __ + 21

Now, we can combine like terms:

20x + 35 - 2x = ___ + 21

18x + 35 = ___ + 21

> subtract 21 from both sides to isolate "___"

18x + 35 = __ + 21

-21 -21

18x + 14 = ___

now that we have a solution, we should check that it works:

5(4x + 7) - 2x = ____ + 21

5(4x + 7) - 2x = 18x + 14 + 21

{simplify both sides:}

20x + 35 -2x = 18x + 35

18x + 35 = 18x + 35

(TRUE)

So, we know our solution is 18x + 14

hope this helps!!