Answer:
x = -439
Step-by-step explanation:
Oh, ok this one will take a while for me to type ;) breath in and breath out!
Ok so watch my steps:
1. 12[tex]x[/tex] - 37
multiply #1 by 7
1. 84x - 259
now multiply #2 by 12 and line 'em up
2. 84[tex]x[/tex] + 180
1. 84x - 259 ( -
-----------------------
x + 439 = 0
x = 0 -439
x = -439
