-2/5 g + 2 = 10
you first need to move the 2 so subtract 2 from both sides
-2/5 g = 8
to clear the fraction in front of the variable, multiply by the reciprocal.
The reciprocal of (-2/5) is (-5/2)
(-5/2)(-2/5) g = 8(-5/2)
g = -20
CHECK
(-2/5)(-20) + 2 =
40/5 + 2 = 8 + 2 = 10