130-26(100:х) =0

Treat 130 − 26(100/x) = 0 with x ≠ 0.

Method 1 (simpler):

• 26(100/x) = 130
• 100/x = 5 (divide both sides by 26)
• x = 100/5 = 20

Method 2 (multiply by x):

• (130 − 26(100/x))x = 0 → 130x − 2600 = 0
• 130x = 2600 → x = 2600/130 = 20

Answer: x = 20.