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2 years ago

What is the solution to the equation?

Mathematics

1 answer:

Elza [17]2 years ago

6 0

$5x+10=-4x-17 \\
5x+4x=-17-10 \\
9x=-27 \\
x=\frac{-27}{9} \\
\boxed{x=-3} \Leftarrow \hbox{answer C}$

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Answer:

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Step-by-step explanation:

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3 years ago

I don’t understand this one

Masja [62]

Answer:

see below

Step-by-step explanation:

Put -1 where x is in each expression and evaluate it.

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This first expression is one you want to "check."

You can see that the reason the expression is zero is that x+1 has a sum of zero. You can look for that same sum in the other expressions. (The tricky one is the one with the factor (x -(-1)). You know, of course, that -(-1) = +1.)

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