Question

Evaluate the expression 2(4y+5y)if x=2 and y=1

plsss answer​

Answer 1

`\large \mathfrak{Solution : }`

let's solve for y :

• 
  `2(4y + 5y)`

• 
  `2(9y)`

• 
  `18y`

• 
  `18 * 1 \: \: \: \: \: (since, \: \: y = 1)`

• 
  `18`

therefore, the value of above expression is 18 .