Given that x is a nonnegative number, a student conjectured that x+3 Which value of x is a counterexample to the student's conjecture?

X= -1/3

X= -3

X= 2

X= 3

Step-by-step explanation:

Given

Conjecture: --- (Missing)

Required

Which value of x prove the conjecture otherwise

To do this , we simply substitute the values of x in the options

This is negative;

So, there is no need to check

This is also negative;

So, there is no need to check

This value of x is false because 5 is not less than 4

answer: are you

step-by-step explanation:

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.