How do you solve 42+90+X=180 ?
42 + 90 + x = 180
First, subtract 90 from 180. 180 - 90 = 90
Next, subtract 42 from 90. 90 - 42 = 48
Lastly, substitute 48 for x, and add.
42 + 90 + 48 = 180
x = 48
