Answer: choice A, 1.2x
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Explanation:
The first term x is the same as 1x. This is because 1 multiplied with any number is that number itself. So 1x = x.
Therefore,
x+0.2x = 1x+0.2x
We have 2 like terms: both have just an x in them. We add the values to the left of the x's and we get 1+0.2 = 1.2; then we tack an 'x' at the end to get our final answer 1.2x