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3 years ago

14

Could someone help me step by step with this question?

1 answer:

a_sh-v [17]3 years ago

7 0

$\frac{2}{3}(9+x)=-5(4-x) \\ \\ 3*\frac{2}{3}(9+x)=3*[-5(4-x)] \\ \\ 2(9+x)=-15(4-x) \\ \\ 18+2x=-60+15x \\ \\ -13x=-78 \\ \\ \cfrac{-13x}{-13} = \cfrac{-78}{-13} \\ \\ x=6$

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Match the following items by evaluating the expression for x = -7. x-2 x-1 x0 x1 x2

frosja888 [35]

Answer:

${x}^{ - 2} = \frac{1}{ {x}^{2} } \: \: –> {7}^{ - 2} = \frac{1}{ {7}^{2} } = \frac{ 1}{49} \\ \\ {x}^{ - 1} = \frac{1}{ {x}^{1} } \: –> {7}^{ - 1} = \frac{1}{ {7}^{1} } = \frac{1}{7} \\ \\ {x}^{0} –> {7}^{0} = 1 \\ \\ {x}^{1} –> {7}^{1} = 7 \\ \\ {x}^{2} –> {7}^{2} = 49$

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2 years ago

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Talja [164]

Answer:

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Step-by-step explanation:

Given

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Multiply both sides by 8 to clear the fractions

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3 years ago

If f(x)=x/x+1<br> + 3, what is the value of x if f(3) = 10/3

TiliK225 [7]

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alexira [117]

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Step-by-step explanation:

they want us to write it in repetition. thus, we can simplify

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3 years ago

Read 2 more answers

Answer number 2 plz plz plz

Bingel [31]

Ok so the answer is Choice b

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