Answer:
x = 1
Step-by-step explanation:
Introduction to equations 101. To solve for x you want initially to have an expression containing only x on one side of the equality sign and the value of the expression on the other. Let's start by making that happen by subtracting both sides by 1. What you do to one side you must also do to the other side to keep the equality.
[tex]2x + 1 - 1 = 3 - 1 \implies 2x = 2[/tex]
Works for addition, what about division? Sure, let's also divide both sides by 2.
[tex]2x = 2 \implies \frac{2x}{2} = \frac{2}{2} \implies x = 1[/tex]
There we have it. we isolated x and found it's value.
