Question

Solution of the equation 2x+1=x+3
a. 3
b. 1
c. 2
d. 4

Answer 1

C. x = 2

Explanation:

2x + 1 = x + 3

subtract the x from both sides so

2x + 1 = x + 3

-x -x

when we subtract the x we are left with x + 1 = 3

since we want x alone we have to subtract 1 from both sides so

x + 1 = 3

-1 -1

3 - 1 = 2 so

x = 2