Respuesta :

You're missing some operators there between the variable and the number which will change it drastically. I'll give you all the options.

3q+5=-2q+20

5q = 15

q=3

3q-5=-2q-20

5q = -15

q = -3

3q+5=-2q-20

5q = -25

q = -5

3q-5=-2q+20

5q = 25

q = 5