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tatuchka [14]
3 years ago
15

2x-4y=2 -2x+3y=0 elimination

Mathematics
2 answers:
statuscvo [17]3 years ago
8 0
2x-4y=2 \\
\underline{-2x+3y=0} \\
-4y+3y=2+0 \\
-y=2 \\
y=-2 \\ \\
2x-4y=2 \\
2x-4 \times (-2)=2 \\
2x+8=2 \\
2x=2-8 \\
2x=-6 \\
x=\frac{-6}{2} \\
x=-3 \\ \\
(x,y)=(-3,-2)
elena55 [62]3 years ago
6 0

2x-4y=2

-2x+3y=0

-------------------- (+)

3y-4y=2

-y=2   /*(-1)

<em>y=-2</em>

<em />

2x-4y=2

2x-4*(-2)=2

2x+8=2   /-8

2x=-6

<em>x=-3</em>


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