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viktelen [127]
3 years ago
13

5x - 7(x+3) = -2x +12​

Mathematics
2 answers:
stich3 [128]3 years ago
6 0
I believe it would be no real solution
Anastaziya [24]3 years ago
5 0

Answer:

No variation

Step-by-step explanation:

5x - 7(x+3) = -2x +12

⇔5x-7x-21= -2x+12

⇔5x-7x+2x=21+12

⇔0x=39

There is no variation of x can fulfill the requirements

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A tennis racket normally costs ​$60. The tennis racket is on sale for 30​% off. What is the sale price of the tennis​ racket?
hram777 [196]
The answer would be 42 and here’s how:)

so to start it would be written as this.
___=30% x 60

meaning what equals 30% of 60.

= means is
x means of
___ means what

•so for example if you have this question written out, it would be - what is 30% of 60, and that would turn into the first equation by a substitution method.
• then you have to put the 30% as a decimal. (0.3)
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• then you would turn it around so it’s 0.3 x 60=

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• so now you have to take the original 60, and subtract the answer amount of 18.

that would look like this. 60-18=___
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8 0
3 years ago
What’s negative and positive on y axis and x axis
aksik [14]
Hello.


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