Answer:
X=3
The answer should have a positive sign.
Step-by-step explanation:
<em>First, you subtract by 7 both sides of equation.</em>
<em>2x+7-7=13-7</em>
<em>Simplify.</em>
<em>13-7=6</em>
<em>2x=6</em>
<em>Then, divide by 2 both sides of equation.</em>
<em>2x/2=6/2</em>
<em>Simplify, to find the answer.</em>
<em>6/2=3</em>
<em>X=3 is the correct answer.</em>