Stuck on this question! Can someone please help? 2 + 7x + 3 − 5x − 1 = "______"? Thanks!

2 Answers
May 4, 2018

4 + 2x is the final expression. Here's why:

Explanation:

2 + 7x + 3 - 5x -1 = ?

Start by combining like terms in the order that they appear. Let's break them into variables and integers.

Integers first:

2 + 3 - 1 = 4

Then, variables:

7x - 5x = 2x

Now, add what you've combined:

4 + 2x

May 4, 2018

Assuming that you just want this simplified since there is nothing on the right of the = sign, the answer is:

2x + 4

Explanation:

The easiest way to simplify this problem is to combine like terms. First we'll combine all the x terms:

2 + color(red)(7x) + 3 color(white)"x"color(red)( - 5x) - 1 = ?

2 + color(red)(2x) + 3 -1

Now combine all of the real numbers:

color(blue)2 + 2x + color(blue)3 color(white)x color(blue)(-1)

2x + color(blue)4

The simplest form of this problem is 2x + 4.