Define treatment. Choose the correct answer below. A. The quantitative or qualitative variable for which the experimenter wishes to determine how its value is affected by the explanatory variable B. The number of individuals in the experiment C. A controlled study to determine the effect varying one or more explanatory variables or factors has on a response variable D. Any combination of the values of the factors (explanatory variables)

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.

the answer is ! ?

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