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2 years ago

I need help with this question -2(x + 1) = -2x + 5

Mathematics

1 answer:

soldi70 [24.7K]2 years ago

6 0

Answer:

No solution

Step-by-step explanation:

Apply the distributive property:

-2x - 2 = -2x + 5

Add 2x to each side:

-2 = 5

Since negative two never equals five, there is no solution to this equation.

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3 years ago

Read 2 more answers

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Answer:

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Step-by-step explanation:

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4 0

3 years ago

8/x-5 - 9/x-4 = 5/x^2-9x+20

adelina 88 [10]

If you're using the app, try seeing this answer through your browser: brainly.com/question/2752942

_______________

Solve the equation:

$\mathsf{\dfrac{8}{x-5}-\dfrac{9}{x-4}=\dfrac{5}{x^2-9x+20}\qquad\qquad(x\ne 5~and~x\ne 4)}$

Reduce the fractions at the left side so that they have the same denominator:

$\mathsf{\dfrac{8(x-4)}{(x-5)(x-4)}-\dfrac{9(x-5)}{(x-4)(x-5)}=\dfrac{5}{x^2-9x+20}}\\\\\\
\mathsf{\dfrac{8x-32}{x^2-4x-5x+20}-\dfrac{9x-45}{x^2-4x-5x+20}=\dfrac{5}{x^2-9x+20}}\\\\\\
\mathsf{\dfrac{8x-32}{x^2-9x+20}-\dfrac{9x-45}{x^2-9x+20}=\dfrac{5}{x^2-9x+20}}\\\\\\
\mathsf{\dfrac{8x-32-(9x-45)}{x^2-9x+20}=\dfrac{5}{x^2-9x+20}}$

Numerators must be equal:

$\mathsf{8x-32-(9x-45)=5}\\\\
\mathsf{8x-32-9x+45=5}\\\\
\mathsf{8x-9x=5+32-45}\\\\
\mathsf{-x=-8}\\\\
\mathsf{x=8}\quad\longleftarrow\quad\textsf{this is the solution.}$

I hope this helps. =)

Tags: <em>rational equation fraction solution algebra</em>

7 0

3 years ago

choose yes or no to indicate which of the equations can be used to describe the pattern in the table (am i correct??????)

Alex

Answer:

Yes

Step-by-step explanation:

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3 years ago

How can you use angle relationships to find unknown angles?

Hitman42 [59]

Answer:

Steps to Solving for Unknown Angles.

Identify the angle relationship(s).

Set up an equation that will yield the unknown value.

Solve the equation for the unknown value.

Substitute the answer to determine the angle(s).

Check and verify your answer by measuring the angle with a protractor.

Step-by-step explanation:

hope this helps

stay safe :))

brainliest is appreciated :))))

5 0

4 years ago