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tahmidtaj150
18.04.2020 •
Mathematics
Help please, I'm stuck i tried answering it but can't really understand it.
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Ответ:
B. None
Step-by-step explanation:
We can use substitution for this.
First solve the first equation for y:
y + 7x = -3
y = -7x - 3
Now, substitute this expression in for y in the second equation:
14x + 2(-7x - 3) = 6
We can then solve for x:
14x - 14x - 6 = 6
0 - 6 = 6
-6 = 6
However, we know that -6 ≠ 6, so there are no solutions to this system. Thus, the answer is B, none.
Hope this helps!
Ответ:
no solutions
Step-by-step explanation:
y+7x =-3
14x+2y = 6
Multiply the first equation by -2 to eliminate x and y
-2y-14x = 6
14x+2y = 6
0 = 12
This is never true, so there are no solutions
Ответ:
Step-by-step explanation:
N nn