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Ivahew [28]
3 years ago
7

Solve the inequality and graph the solution |7x-7|+2<23

Mathematics
1 answer:
Naya [18.7K]3 years ago
3 0

|7x-7|+2 < 23\ \ \ \ \ |-2\\\\|7x-7| < 21\iff7x-7 < 21\ \wedge\ 7x+7 > -21\ \ \ \ \ \ |+7\\\\7x < 28\ \wedge\ 7x > -14\ \ \ \ \ \ \ |:7\\\\x < 4\ \wedge\ x > -2\\\\-2 < x < 4

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Can the exponent in the denominator be subtracted from the exponent in the numerator when the based are different? Explain
Vanyuwa [196]

Answer:

No, Sorry.

Step-by-step explanation:

Since the bases are different, you'll have to change them even if they have a exponent or not. If you dunno how to make the denominators the same, just multiply the two by eachother.

Example) 1/2 - 3/4

\frac{1}{2}  -  \frac{3}{4}

Multiply 2 and 4 together, and then multiply the 4 to the one also. Multiply 2 to four and also to the 3.

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The subtract from there.

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4 0
3 years ago
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Lana71 [14]

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Step-by-step explanation:

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7 0
2 years ago
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alexgriva [62]

Answer:

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Step-by-step explanation:

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Now,

Given,

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Now, we simply plug these into the formula for point-slope form of a line:

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