Answer :
70 - q - q - 2q = 80
-4q = 80 - 70
-4q = -10
q = -10/-4
q = -2.5
-4q = 80 - 70
-4q = -10
q = -10/-4
q = -2.5
70-q-q-2q=80
or, 70 - 2q - 2q = 80
or, 70 - 4q = 80
or, -4q = 80 - 70
or, -4q = 10
or, q = 10/-4
or, q = -2.5 (ans)
or, 70 - 2q - 2q = 80
or, 70 - 4q = 80
or, -4q = 80 - 70
or, -4q = 10
or, q = 10/-4
or, q = -2.5 (ans)
