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yaroslaw [1]
3 years ago
8

Is 2.0 a solution to the equation? X-2y=0 , 2x-3y=1

Mathematics
1 answer:
Travka [436]3 years ago
8 0
No, because (2,0) is a coordinate. x=2 and y=0. So just plug in the numbers where there's x or y with the appropriate number, (2 or 0). So in the first equation, x-2y=0, when you pug in the numbers, 2-2(0)=0, you know it's wrong because 2-0=0 isn't correct. So no. the point (2,0) is not a solution to the first equation. Now plug in the numbers for the second coordinate. You get 2(2)-3(0)=1. So 4-0=1. This is once again false no no. (2,0) satisfies neither equations. 
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Simplify the variable expression by evaluating it's numerical part m-13+42-6
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ANSWER

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EXPLANATION

The given expression is

m - 13 + 42 - 6

We regroup the numerical parts to get;

m + 42 - 6 - 13

Now let us simplify the negative numbers.

m + 42 - 19

We now subtract 19 from 42 to get;

m + 23

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Hence the simplest form is:

m + 23

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