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3 years ago

Combine the like terms to create an equivalent expression: 5n + 6 +(-7n) - 9

Mathematics

1 answer:

wel3 years ago

5 0

Answer:

-2n - 3

Step-by-step explanation:

5n + 6 + (-7n) - 9

5n + 6 - 7n - 9

5n - 7n + 6 - 9

-2n - 3

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ASAP PLZ HELP ON THIS SIMPLE QUESTION!

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* WILL GIVE BRIANLIEST 5 QS PLZZ HELP MEH ;D*(07.01)What is the solution to the equation 5x = 40?

Maru [420]

Hello there! :)

Answer:

1. B. 8. and x=8

*The answer must have a positive sign.*

2. D. Infinitely many.

3. D. -1 and y=-1

*The answer must have a negative sign.*

4. C. He didn't add 13 to 26.

5. B. 4 and y=4

*The answer must have a positive sign.*

Step-by-step explanation:

1. First, you divide by 5 from both sides of an equation.

$\frac{5x}{5}=\frac{40}{5}$

Then, simplify.

$40/5=8$

Answer: → $\boxed{x=8}$

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2. 4x=4x both sides are equal and it's true.

Answer: $\boxed{D.}$

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3. First, switch sides of an equation.

$y+9=8$

Then, you subtract by 9 from both sides of an equation.

$y+9-9=8-9$

Simplify and solve.

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Answer: → $\boxed{y=-1}$

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4. First, add by 13 from both sides of an equation.

$x-13+13=26+13$

Then simplify and solve.

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Answer: $\boxed{x=39}$ and $\boxed{C.}$

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5. First, subtract by 9 from both sides of an equation.

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Then simplify and solve.

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Answer: $\boxed{y=4}$

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Hope this helps!

Thanks!

-Charlie

Have a great day!

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