2 years ago

Simplify this expression please and thank you

1 answer:

8 0

The answer is 2x-y

step-by-step explanation
in order to simplify you have to come one like terms and in this case you have your 3x and you’re subtracting x which is also know as 1x.
3x - 1x = 2x (then you still have your y) so 2x-y

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EleoNora [17]

We have two numbers say a, b. And a system of equations.

$a+b=0\wedge\dfrac{a+b}{15}+10(a+b)=1$

It looks a bit intimidating but it's actually very easy.

Instead of term a + b in the second equation we can say it's zero because the first equation describes a + b as being equal to 0.

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The above equation is not true therefore numbers a and b do not exists in the real number domain.

$a,b\notin\mathbb{R}$

No solution.

Hope this helps.

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