orcawave6769
08.01.2020 •
Mathematics
What is the solution of the system of equations shown below?
y = –x + 3
y = 4x – 2
a. (0, 3)
b. (1, 2)
c. (2, 1)
d. (0, −2)
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Ответ:
B. (1,2)
Step-by-step explanation:
y = –x + 3(1)
y = 4x – 2(2)
Putting (1) into (2)
-x + 3 = 4x - 2
4x + x = 3 + 2
5x = 5
x = 5/5
x = 1
And putting x = 1 in (1)
y = -x + 3
y = -1 + 3
y = 2
Ответ:
X and W, as they're the only ones that don't repeat an X value.