Respuesta :
First, combine like terms. G + 2g= 3g. The new equation would be 3g=45. You need to get g by itself, so you need to divide by 3 on each side. You get g=15. So the answer is g=15. I hope this helps!
g +2g =45
combine like terms:
g +2g = 3g
3g=45
divide both sides by 3
g = 45/3
g = 15