Question

What is the answer? ​

Answer 1

Explanation:

Side AB and Side BC are the same so we can make them equal to each other:

3x -4 = 5x -10

Subtract 3x from both sides.

-4 = 2x -10

Add 10 to both sides.

6 = 2x

Divide both sides by 2

3 = x

x = 3

Now substitute x in the expression

3x -4

3(3) -4

PEMDAS

9 - 4

Subtract

5

Answer 2

Required Answer:-

• If
  `\triangle` ABC is a isosceles triangle then
• AB=BC

Now Substitute values

`\longrightarrow`
`\sf 3x-4=5x-10`

`\longrightarrow`
`\sf 5x-10=3x-4`

`\longrightarrow`
`\sf 5x-3x=-4+10`

`\longrightarrow`
`\sf 2x=6`

`\longrightarrow`
`\sf x={\frac {6}{2}}`

`\longrightarrow`
`\sf x=3`

`\therefore`
`\sf AB=3x-4=3* 3-4=9-4 \\ \sf AB=5units`