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2x − y = -2 3y = 6 − 5x x = 0, y = 2 x = 2, y = 0 x = 2, y = 2 x = 0, y = -2
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2x − y = -2 3y = 6 − 5x x = 0, y = 2 x = 2, y = 0 x = 2, y = 2 x = 0, y = -2
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Jul 5, 2018
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2x − y = -2
3y = 6 − 5x
x = 0, y = 2
x = 2, y = 0
x = 2, y = 2
x = 0, y = -2
Mathematics
high-school
Anuradha Gunasekara
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Anuradha Gunasekara
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you can use the substitution method to solve this
2x - y = -2 (change this to be y = 2x + 2 and substitute it for y value)
3y = 6 - 5x
3(2x + 2) = 6 - 5x use distributive property
6x + 6 = 6 - 5x add 5x to both sides
11x + 6 = 6
x = 0 substitute this into an original equation and solve for y
3y = 6 - 5x
3y = 6 - 5(0)
3y = 6
y = 2 (0, 2) answer x=0 y= 2
Omoro
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Jul 6, 2018
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Omoro
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If you're asking which is correct, the answer is the first one: x = 0 and y = 2. You figure this out by substituting in the values and seeing that they are correct, so:
(2 × 0) - 2 = -2
0 - 2 = -2
(3 × 2) = 6 - (5 × 0)
6 = 6 - 0
I hope this helps!
Terma
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Jul 11, 2018
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Terma
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