Question

Pls help I’m very confused on this

Answer 1

x = 7 ; see explanation below :)

Explanation:

First off, here's what the steps should've actually been:

`-4(x-8)+2x=18\\-4x+32+2x=18\\-2x+32=18\\-2x=-14\\x=7`

Now, the mistake in the original equation is that -4(x-8) was expanded to be -4x-32 - It is not '-32' because multiplying two negative numbers (-4 and -8) will give you a positive number - that number should be 32. Of course, that one silly mistake then made the rest of the equation wrong too!

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Answer 2

2nd Line

Explanation:

In the second line he multiplied out the -4 and -8 which should've been a positive 32 but he put it as a negative.