Question

Find the value of x??​

Answer 1

`\huge\boxed{x=10}`

Explanation:

Look at the picture.

`(3x)/(y)=(4x+20)/(2y)\qquad|\text{cross multiply}\\\\(3x)(2y)=(y)(4x+20)\qquad|\text{divide both sides by}\ y\\\\(3x)(2)=4x+20\\\\6x=4x+20\qquad|\text{subtract}\ 4x\ \text{from both sides}\\\\6x-4x=4x-4x+20\\\\2x=20\qquad|\text{divide both sides by 2}\\\\(2x)/(2)=(20)/(2)\\\\x=10`