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siniylev [52]
3 years ago
11

The expression 4x/5-2x/3 is equivalent to

Mathematics
2 answers:
Temka [501]3 years ago
7 0
Mark Brainliest please

Answer:

in order to simplify this you need a common denominator. 15 works well for this. in order to keep the expression equivalent, we must multiply everything by the same thing, but we can format it in any way we like. we need to multiply everything by 1, but we can rewrite 1 by putting a number over itself, such as 5/5 and 3/3.

so we need to get both denominators to equal 15 but we can only multiply by 1. this means we need to multiply 4x/5 by 3/3 and 2x/3 by 5/5. when we do this we get 12x/15-10x/15

next, we simply combine like terms to get 2x/15 as our final answer
slava [35]3 years ago
5 0
12x/15-10x/15

=2x/15 is your answer
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what positive number satisfies the condition that twice the number minus three times the reciprocal of the number is equal to 1?
marshall27 [118]
Solve:

"<span>twice the number minus three times the reciprocal of the number is equal to 1."
                                                     3(1)
Let the number be n.  Then 2n - ------- = 1
                                                       n

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We need to find the roots (zeros or solutions) of this quadratic equation.

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                -(-1) plus or minus 5         1 plus or minus 5
Then x = ------------------------------ = --------------------------
                            2(2)                                  4

x could be 6/4 = 3/2, or -5/4.

You must check both answers in the original equation.  If the equation is true for one or the other or for both, then you have found one or more solutions.</span>
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Ostrovityanka [42]

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least to greatest: -5 and 1

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they represent the zeroes of the function and are sorted from least to greatest

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