SOLUTION: -4x-y=-21
x-2y=12
Solve by substitution
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Question 940173: -4x-y=-21
x-2y=12
Solve by substitution
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
....eq.1
.....eq.2
---------------------
Solve by substitution
.....eq.2...solve for
...substitute in eq.1
....eq.1...solve for
...both sides multiply by
go to
...substitute for
so, intersection point of these two lines is: (,)
check it on a graph:
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