Answer:
its infinite
Step-by-step explanation:
Given equation is 2x+1=x−3
That is 2x−x=−3−1
⇒x=−4
Thus there is only one point on the number line that satisfies the equation x=−4, but on cartesian plane i.e. X-Y plane , there are infinite number of solutions as x=−4, and y can have any real value.