Do the opposite to the x..if it was -2x you plus that
The sequence is all odd numbers. the next will be 15, 17, 19, 21, etc...
In your change cup you have 28 coins. All of which are nickels and quarters. Together they add up to $4. How many coins do you have of each.
4x + 3 = 11
4x = 11 -3
4x = 8
x =8/4
x =2
answer
the number is 2
