Question

Which expression is equivalent to x + 0.2x ?a) 1.2xb) 0.2x2c) 0.2xd) 1.02x​

Answer 1

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