3 years ago

Solve -5(2n+7)=3n+9-2n

Mathematics

2 answers:

xxMikexx [17]3 years ago

8 0

Answer:

n = -4

Step-by-step explanation:

- 5 (2n + 7) = 3n + 9 - 2n

- 10n - 35 = 3n + 9 - 2n

- 10n - 3n + 2n = 9 + 35

- 11n = 44

- n = 44/11

- n = 4

n = - 4

just olya [345]3 years ago

5 0

Answer:

n=-4

Step-by-step explanation:

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andrezito [222]

It is in the air 5.625 seconds.

Using the quadratic formula,

$t=\frac{-b\pm \sqrt{b^2-4ac}}{2a}
\\
\\=\frac{-90\pm \sqrt{90^2-4(-16)(0)}}{2(-16)}
\\
\\=\frac{-90\pm \sqrt{8100-0}}{-32}
\\
\\=\frac{-90\pm \sqrt{8100}}{-32}=\frac{-90\pm90}{-32}
\\
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\\
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3 years ago

X + (-9) + 9 = 8 solve the equation using mental math

Studentka2010 [4]

Answer:

X=8 simplify equation

Step-by-step explanation:

-9+9=0

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4 years ago

1. W+ 4 = 16

ExtremeBDS [4]

1. W=16-4=12
2. X=-12-7=-19
3. W=6+15=21
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6. q=35/7=5

Both questions 4 and 7 aren’t written correctly!!

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3 years ago

Find the x-coordinate of Q' after Q(-2. 5) was reflected over the line y = -x + 4.

Alina [70]

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3 years ago

De que numero 92 es el 15% mas?

mezya [45]

105.8

EXPLANATION

15% de 92 es 13.8
92 + 13.8 = 105.8

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