![ezelle](/avatars/42402.jpg)
ezelle
06.12.2021 •
Mathematics
Solve the equation :
In(5-x) = In5 - Inx,
giving your answers correct to 3 significant figures.
Solved
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Ответ:
Hello mate!
we have these two equations:
7x + 4 - x - 2
6x + 2
And we want to see which properties are needed to see if the expressions are equivalents.
Let's do it.
Start with the first equation:
7x + 4 - x - 2
Let's separate the terms with x and the therms without x, this is:
7x - x + 4 - 2
(7x - x) + (4 - 2)
x(7 -1) + (4 -2)
6x + 2
then 7x + 4 - x - 2 is equivalent to 6x + 2
Just doing that simplification, you can see that both equations are equivalent. The properties used are the commutative property of the addition ( to order the sum in the parentheses) and the distributive property of the multiplications, in order to take out the common factor x in the first parentheses)