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Solve the system {3x-y=4 -9x+3y=-12
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5 votes
Solve the system
{3x-y=4
-9x+3y=-12

User Meraj Rasool
by
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1 Answer

6 votes
Hello :
3x-y=4 .....(1)
-9x+3y=-12 ....(2)
by (1) : y = 3x-4
in (1) : -9x +3(3x-4) = -12
-12=-12
infinity solution : ( x , 3x-4) x in R
User Jether
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6.0k points
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