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4x-5y=-2 and 3y-x=-3
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4x-5y=-2 and 3y-x=-3

User Repeatdomiau
by
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2 Answers

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4x-5y=-2
3y-x=-3
-------
4x-5y=-2
x = 3y+3
Substitute for x in eqn 1
4(3y+3)-5y = -2
User KrisSodroski
by
8.7k points
2 votes
4x-5y=-2
-x+3y=-3 |*4

4x - 5y= - 2
-4x +12y= -12
--------------------
/ 7y=-14
y= -14:7
y= -2
3y-x= -3
3*(-2)-x=-3
-6 - x= -3
x=-6+3
x= -3
The solution is (-3,-2)
User Lznt
by
7.6k points
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