Answer:
[tex]x = 16[/tex]
Step-by-step explanation:
Step 1: Combine like terms
[tex]x + 18 + x = 50[/tex]
[tex]2x + 18 = 50[/tex]
Step 2: Subtract 18 from both sides
[tex]2x + 18 - 18 = 50 - 18[/tex]
[tex]2x = 32[/tex]
Step 3: Divide both sides by 2
[tex]2x / 2 = 32 / 2[/tex]
[tex]x = 16[/tex]
Answer: [tex]x = 16[/tex]