-15 = 6x + 15 -10x
1st. You combine like terms
(6-10)x
-15 = -4x + 15
2nd. You move variables to the left side and change the sign
-15 = -4x + 15
+4x +4x
4x - 15 = 15
+15 +15
4x = 30
3rd. You divide both sides of the equation by 4
(4x) /4 = (30) /4
x= 30/4
4th. Reduce the fraction by 2
30/ 4 = 15/2
Answer is 15/2
4 1/2 = 9/2
1 5/7 = 12/7
9/2 / 12/7 = 21/8 = 2.625
You have to think of all posibilltiies
3,2
2,3
4,1
1,4
Those are number that can happen so the answer would be 4/6 because there are 6 numbers on a number cube = 2/3
