Question

Which value is a solution of the equation 85= 120-w?

Answer 1

$85=120-w\\85-120=120-w-120\\-35=-w\\\frac{-35}{-1}=\frac{-w}{-1}\\35=w$

w = 35

Answer 2

120-85=35
therefore 120-35 = 85
w=35