Question

Explain and correct the error made by a student who simplified this expression.
–2x + 7x + 8
(–2 + 7 + 8)x
13x

Answer 1

Answer:

$8no \: \: x \: so \: cannot \: simplified \: x$

-2x+7x+8

=5x+8

Answer 2

Answer:

5x+8

Step-by-step explanation:

the simplified form is 5x+8