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4 years ago

Solve for x: x-9= 0 A.x- -2 CB. = 2 C C. X = 20

Mathematics

2 answers:

mars1129 [50]4 years ago

5 0

Answer:

x = 9

Step-by-step explanation:

Well, let's solve it!

x - 9 = 0

Let's add 9 to both sides to isolate the variable and maintain equality.

We end up with :

x = 9 since -9 and 9 cancel out and 0 + 9 = 9.

Varvara68 [4.7K]4 years ago

4 0

X=9. Add the 9 over to the 0 and you are left with x=9

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mafiozo [28]

For this case we must resolve the following inequality:

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Applying distributive property on the left side of inequality we have:

$8 + 4x> 5x + 5$

Subtracting 5 from both sides of the inequality:

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Subtracting 4x from both sides of the inequality:

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3 years ago

20 points!!! first answer gets brainliast. Don't need too much explanation thank you!

KengaRu [80]

Answer:

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Step-by-step explanation:

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4 years ago

Find the trade discount amount for an order of merchandise with a list price of $25,000 less trade discounts of 30/25/10.

nasty-shy [4]

Answer:

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Step-by-step explanation:

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3 years ago

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Paladinen [302]

Answer:

there are two solutions:

a) $y=\frac{-6+2\sqrt{6} }{5}$ , and

b) $y=\frac{-6-2\sqrt{6} }{5}$

Step-by-step explanation:

In the equation: $(5y+6)^2=24$ , since a perfect square with the unknown "y" is isolated on the left of the equal sign, we start by applying the square root on both sides of the equality, and then on isolating the unknown:

$(5y+6)^2=24\\\sqrt{(5y+6)^2} =+/-\sqrt{24} \\(5y+6)=+/-\sqrt{6*4} \\(5y+6)=+/-2\sqrt{6}\\5y=-6+/-2\sqrt{6}\\y=\frac{-6+/-2\sqrt{6} }{5}$

Therefore there are two solutions:

a) $y=\frac{-6+2\sqrt{6} }{5}$ , and

b) $y=\frac{-6-2\sqrt{6} }{5}$

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