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Vikentia [17]
3 years ago
5

Three added to eight times a number is the same as three times the value of two times the number -1

Mathematics
1 answer:
emmainna [20.7K]3 years ago
3 0

Answer:

The number x is -3

Therefore x=-3

Step-by-step explanation:

Given problem is "Three added to eight times a number is the same as three times the value of two times the number -1"

Let x be the number

It can be written as

3+8\times x=3(2\times x-1)

3+8x=3(2x-1)  ( applying the distributive property )

3+8x=3(2x)+3(-1)

3+8x=6x-3

subtracting (6x-3) on both sides we get

3+8x-(6x-3)=6x-3-(6x-3)

3+8x-6x+3=6x-3-6x+3

6+2x=0 ( ading the like terms )

2x=-6

x=-\frac{6}{2}

Therefore x=-3

The number x is -3

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Its alright, You are doing better than a whole bunch of people
you know why?
because you realized you needed help and asked.

Now, aside from mushy pep talk, let me help you a bit.

When multiplying numbers with exponents, its the same as adding the exponents so x^{2} *  x^{3} =  x^{5}
cool right?

now you can take your answer \frac{ x^{5}  y^{10}}{ x^{9} y^{5}}

Remember though, if you don't see the exponent, it is 1, not zero.

so if you noticed, x * x^{8} =  x^{9}
just remember that and you should be fine

also, if you have to simplify more, and example would be \frac{ x^{2} }{x} = x

you get that from subtracting the x^{1} from the top x^{2}

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3 0
3 years ago
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If the hypotenyse of an isosceles triangle is 8 inches, is there enough information to find the length of the legs? If yes, find
OLga [1]

Answer: 5..6 in.

Step-by-step explanation:

Given

Hypotenuse of isosceles triangle is 8 inches

In isosceles triangle two sides are equal

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Using Pythagoras we can write

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Therefore, the lengths of the legs is 5.6 inches

3 0
4 years ago
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Answer:

1/4

Step-by-step explanation:

4/8 = 1/2

1/2 x 1/2 = 1/4

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Step-by-step explanation:

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