Question 52750
9=13x-7-5x
9=(13-5)x-7
9=8x-7
9+7=8x-7+7
16=8x
16/8=8x/8
2=x
Check your answer by substituting your answer into the equation to see if it works.
9=13(2)-7-5(2)
9=26-7-10
9=26-17
9=9 Yeah! We're right!
x=2