Help me please, this make no sense to me

< 3 = 143 because you add the 90 degree angle and the 53 degree angle and get 143 and then do 180 - 143 to get <2 = 37 and then 180 - 37 to get < 3 = 143

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