22−22(a+22)=7+a
22−22(a+22) = 7+a simplify the left side
22 - 22a - 484 = 7 + a
-22a - 462 = 7 + a add 22a to both sides, subtract 7 from both sides
-469 = 23a divide both sides by 23
-469 / 23 = a
