aesthetickait
27.06.2019 •
Mathematics
You can use a system of equations to graph and solve the polynomial equation which statement is true? the system has one solution, and the equation has three zeroes. the y coordinates of the solutions to the system and the zeroes of the equation are not equal. the x coordinates of the solutions to the system and the zeroes of the equation are not equal. the equation has one zero, and the system has three solutions. the answer is b
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Ответ:
you already gave the answer
step-by-step explanation:
Ответ:
9514 1404 393
(x, y) = (8, 2)
Step-by-step explanation:
The relevant equations are ...
3x -y = 22
x +2y = 12
__
We can eliminate y by adding twice the first equation to the second.
2(3x -y) +(x +2y) = 2(22) +(12)
7x = 56
x = 8
Substituting into the first equation gives ...
3(8) -y = 22
y = 24 -22 = 2
The first number is 8; the second number is 2.