Question

Which value of x makes this inequality true? x+9<4x

Answer 1

Explanation:

x+9

Let x, be 4

4+9=13

given condition,

x+9<4x

4+9<4(4)

13<16

Answer 2

The answer is:

x > 3

Work/explanation:

Our inequality is:

`\sf{x+9 < 4x}`

Flip it

`\sf{4x > x+9}`

Solve

`\sf{4x-x > 9}`

Combine like terms

`\sf{3x > 9}`

Divide each side by 3

`\sf{x > 3}`

Hence, x > 3