2 years ago

Solve the following system of equations -2x+y=1 -4x+y=-1

Mathematics

2 answers:

Setler [38]2 years ago

6 0

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.

VladimirAG [237]2 years ago

4 0

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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Keywords: Solving Exponents

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