Question

Solve the following system of equations:

-2x + y = 1
-4x + y = -1

A. (3, 1)

B. (-1, 3)

C. (-1, -3)

D. (1, 3)

Answer 1

ill give a medal plz help!!

Answer 2

any thoughts to solve this ?

Answer 3

no

Answer 4

We are going to use elimination method
so multiplying by -1 the eqution 1 to get rid of Y-variable
\[1) -2x+y = 1\]
\[2) -4x + y =-1\]

And then add the equations up, to solve for x

Answer 5

@belllove24 are you follow me ?

Answer 6

@belllove24 everything alright ?

Answer 7

so then whats the answer...

Answer 8

lol i thought you had already solved this

Answer 9

\[-2x +0 =-2\]solve this to find x

Answer 10

its 0....

Answer 11

@kmeis002 @paki help..

Answer 12

hitn: a + 0 = a ( a number added up with 0 is just the same number)

Answer 13

simple... STEP 1: Multiply first equation by -2.

After multiplying we have the following system:
4x−2y−4x+y=−2=−1

STEP 2: add the two equations together to eliminate x from the system.
−y=−3

STEP 3: find y
y=3

STEP 4: substitute the value for y into the original equation to solve for x.
−2x+(3)=1
x=1

Answer 14

@belllove24

Answer 15

method if rock_mit is also good... you can follow that too...