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Alexus [3.1K]
4 years ago
8

How would u solve this liner system?

Mathematics
1 answer:
ikadub [295]4 years ago
8 0
We can solve it by substitution: y = - 3 x - 1.
So the 2nd equation becomes:
4 x + 3 * ( - 3 x - 1 ) = 2
4 x - 9 x - 3 = 2
- 5 x = 2 + 3
- 5 x = 5
x = 5 : ( - 5 ) = -  1
y = - 3 * ( - 1 ) - 1 = 3 - 1 = 2
Answer:  x = - 1,  y = 2.
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I must assume that by 4/5 you actually meant (4/5) and that by 2/3 you meant (2/3).  Then your equation becomes:

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