you start at a point on the number line and move 4 units left. If you are now at 10, then what was y

[math_celebrity]

you start at a point on the number line and move 4 units left. If you are now at 10, then what was your original point?

Work backwards. If we're at 10, and we moved left, this means we add 4 to get back to our starting point:
10 + 4 = 14