Solve the following system of equations
-2x+y=1
-4x+y=-1
2 answers:
Answer:
(1, 3).
Step-by-step explanation:
-2x + y = 1
-4x + y = -1 Subtract :
-2x - (-4x) = 1 - (-1)
-2x + 4x = 2
2x = 2
x = 1.
Substitute x = 1 in the first equation:
-2(1) + y = 1
-2 + y = 1
y = 1 + 2
y = 3.
Answer:
x = 1
y =
Step-by-step explanation:
-2x + y=1
-4x + y=-1
-2 (2) x + (2) y = (2) 1 (multilply by 2)
-4x + y=-
1
-4x + 2y = 2
-4x + y = -1
minus side by
y = 3
x =
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