How you solve b-9+6b=30
b - 9 + 6b = 30b+ 6b - 9 = 30 7b - 9 = 307b = 39b = \(\frac{39}{7}\)Nice days...........
associative property is moving a+b=b+aadd like terms1b+6b-9=307b-9=30add 9 to both sides7b=39divide both sides by 7b=39/739/7=5 and 4/7
