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3x-15=? add 15 to both sides
+ 15=15
3x=15 Divide by 3 on both sides
3 3
x=5 Answer
If: 3x = 45 Then: x = 15
If you are solving for y, it is fine. If you are solving for x, divide both sides by x and the equation should be x = y/x
The difference between factoring and solving is...Factoring: The answer would be in multiplication form.Example: x²+7x+12=0 is the same as (x+3)(x+4)Solving: The answer would be what the unknown variable is equal too.Example: x²+7x+12=0 is the same as x=-3 or X=-4
The multiples of 3 are 14, 15, and 16. 3x14 = 42 3x15 = 45 3x16 = 48
distance= speed x time