How do you simplify $16+7y-8$ ?

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Answer 1 · 2016-01-07T14:58:51

Answer: $color(brown)(7y+8)$

We group like terms and work out the final value for each group.

$color(blue)("Consider "7y)$

This is the only term in $y$ so there is no work to be done on it!
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$color(blue)("Consider the integer values of 16 and 8")$

When grouped we have: + 16 and -8. Notice that their signs follow them!

As a whole this is: 16-8 which after the subtraction becomes +8

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$color(blue)("Putting at all together we have: " 7y+8)$

How do you simplify 16+7y-816+7y-8?