Question

Tyler is simplifying the expression 6 - 2x +

5 +4x Heres His work:
6-2x+5+4x
(6 - 2)x + (5 + 4 )x
4x + 9x
-
13x
A. Tyler's work is incorrect. explain his
error he made
B. Write an expression equivalent to
6 - 2x + 5 +4x That only has two terms

Answer 1

Tyler grouped up 6-2 and 5-4 instead of grouping up the x terms.

6-2x + 5+4x=

2x+4x= ?

6 + 5 = 11

11- 2x + 4x =

-2x + 4x = 2x

2x + 11

Explanation:

Answer 2

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Let's help Tyler simplify the expression correctly.

6-2x+5+4x

Add the x's:-

-2x+4x

2x

Now add the numbers:-

6+5

11

Put the terms together (but don't add them, since 11 and 2x are not like terms)

11+2x

An equivalent expression would be

2x+11 (switch the order)

Good luck.

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