Respuesta :
add 15 to -3 and get 12
so you have 7b=5b+12
now subtract 5b out of 7b
you now have 2b=12
divide by 2b
so you should have b=6
Hope this helped! :)
so you have 7b=5b+12
now subtract 5b out of 7b
you now have 2b=12
divide by 2b
so you should have b=6
Hope this helped! :)