Mr. murphy has an old coin that has 10 sides. if it's shape it's a polygon how many angles does the old coin have

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

its line 2 i just added the rest or else it wouldn't let me answer