klslaughter07
10.10.2019 •
Mathematics
6. here are two expressions whose sum is a new expression, a.
(2x² + 5) + (60 -7)=a
select all the values that we can put in the box so that a is a polynomial.
a. -2
b.-1
c. -0.5
d.o
e. 0.5
f. 1
g. 2
Solved
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Ответ:
-2x+7 = -23 ---(second equation)
-2x = -23-7
x = 30/2
x = 15
Now, Substitute the value of x in first equation,
15 + 3y = 1
3y = 1 - 15
y = -14/3
In short, Final Answers are: x = 15 & y = -14/3
Hope this helps!