Answer:
x = 5
Step-by-step explanation:
Given
2x + 10 = 20
Subtract 10 to both sides
(2x + 10) -10 = 20 - 10
2x = 10
Divide both sides by 2
[tex]\frac{2x}{2} =\frac{10}{2}[/tex]
x=5
Check your work. Substituted 5 for x
2x + 10 = 20
2(5) + 10 =20
10 + 10 = 20
20 = 20
