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3 years ago

Solve for x. rx + h = sx - k

1 answer:

5 0

Rx + h = sx - k
subtract h from both sides
rx = sx - k - h
subtract sx from both sides
rx - sx = -k -h
divide both sides by r-s
x = (-k -h) / r-s

Hope this helps :)

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Answer:

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Step-by-step explanation:

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3 years ago

What is the value of a when we rewrite 8^x as a^-x/9

Andre45 [30]

Answer:

$a = \frac{1}{134217728}$

Step-by-step explanation:

Given

$8^x = a^{-x/9}$

Required

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3 years ago

Solve the system using elimination. 5x + 8y = –29 7x – 2y = –67

MA_775_DIABLO [31]

First, multiply the second equation by 4 so that 8y can cancel out. Now you have
5x+8y=-29
and
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Add these equations to get
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Divide both sides by 33, and you have
x=-9
Now, simply solve for y by plugging it into an equation, and you have
y=2
The final answer is (-9,2)!

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3 years ago

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