4. Look at this model of a molecule of ammonia. In this model, the blue sphere represents an atom of
nitrogen, and the smaller gray spheres represent
atoms of hydrogen. If you wanted to explain the
structure of this molecule, would you use this
model or the description on the previous screen?
Why?
De
EN

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

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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graph them on a graphing calculator, press 2nd trace. select intersect. hit enter until it says answer. ti 84 works best

step-by-step explanation:

x = 1/2

step-by-step explanation:

hope this !