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barxatty [35]
2 years ago
13

Solve ~

x + 5" alt="2x + 1 - 4x = 7x + 5" align="absmiddle" class="latex-formula">

don't spam .-.
thankyou ~​
Mathematics
2 answers:
riadik2000 [5.3K]2 years ago
7 0

Answer:

x=-\frac{4}{9}

Step-by-step explanation:

2x + 1 - 4x = 7x +5

First, take 7x to the left side.

2x + 1 - 4x - 7x = 5

Now take 1 to the right side.

2x - 4x - 7x = 5 - 1

Now combine like terms.

-2x - 7x = 4

-9x = 4

Now divide both sides by -9.

<u>x = - 4/9</u>

Verizon [17]2 years ago
7 0

Answer:

2x+1-4x=7x+5

-->2x-4x-7x=5-1

-->-2x-12x=4

-->-9x=4

-->x=-4/9

-->x=-4/9

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Answer: Choice B

(-2, 5)

==================================================

Explanation:

The original system is

\begin{cases}-4x+3y = 23\\ x-y = -7\end{cases}

Multiply both sides of the second equation by 3. Doing so leads to this updated system of equations

\begin{cases}-4x+3y = 23\\ 3x-3y = -21\end{cases}

Now add straight down

The x terms add to -4x+3x = -1x = -x

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Now use this to find y. You can pick any equation with x,y in it

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Read 2 more answers
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