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3 years ago

6

What is the answer to x + 3 = -x - 5

2 answers:

LenaWriter [7]3 years ago

5 0

Answer:

x=-4

Step-by-step explanation:

ruslelena [56]3 years ago

3 0

Answer:

x = -4

Step-by-step explanation:

Add 5 on both sides:

x + 3 = -x - 5

+5 +5

x + 8 = -x

Subtract x on both sides:

x + 8 = -x

-x -x

8 = -2x

Divide by -2 on both sides:

8 = -2x

/-2 /-2

-4 = x

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How do I solve the length of AC?

Crank

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Thus ;

$\frac{AD}{AC} = \frac{DE}{BC} = \frac{AE}{AB} \\$

So :

$\frac{5}{3 + 2x} = \frac{4}{8} \\$

$\frac{5}{3 + 2x} = \frac{1}{2} \\$

Inverse both sides

$\frac{3 + 2x}{5} = \frac{2}{1} \\$

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Multiply sides by 5

$5 \times \frac{2x + 3}{5} = 5 \times 2 \\$

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Thus ;

$AC = 2x + 3 = 10$

$AC = 10$

Done...

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