15
1 x 15, 3 x 5, 5 x 3, 15 x 1 = 15
x/5 = 3 Multiply both sides by '5' x = 15
3 x 25 5 x 15
9 x 5 5 x 9 15 x 3 3 x 15 1 x 45 45 x 1
1 over 3 is a third. A third of 15 equals 5 (3 x 5 = 15)
If the question is, What x 3 equals 15? Then 5 x 3 = 15 If the question is, What is 15 x 3? Then 15 x 3 = 45
1 x 15, 3 x 5, 5 x 3, 15 x 1.
1 x 15, 3 x 5, 5 x 3, 15 x 1 = 15
x=3 becaus: 6x=x+15 5x=15 (-x) x=3 (divided by 5)
5 x 3 = 15
x/5 = 3 Multiply both sides by '5' x = 15
1 x 15, 3 x 5 = 15
3 x 5
If: -3x = 15 Then: x = -5 Because: -3 times -5 = 15
-3(x-5)=2x -3x+15=2x 15=5x x=3
1 x 15, 3 x 5 = 15
x2 + 8x = -15 x2 + 8x + 15 = 0 since 15 = 5 x 3 and 5 + 3 = 8, then (x + 5)(x + 3) = 0 x + 5 = 0 or x + 3 = 0 x = -5 or x = -3