what is 3+7x-6x=9 ?

Question

i just need help

Answer 1

3 + 7x - 6x = 9

3 + x = 9      (combine like terms)

3 + x - 3 = 9 - 3  (subtract 3 from both sides)

x = 6   (on the left side, the 3 and -3 cancel)