SOLUTION: solve each system by the substitution method. Be sure to check all proposed solutions.
-4x+y=-11
2x-3y=5
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Question 189289: solve each system by the substitution method. Be sure to check all proposed solutions.
-4x+y=-11
2x-3y=5
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!
Given:
Isolate "y" in EQN 1 ,, EQN 3 (subst. in EQN 2)
----->
, subst. in EQN 3
Let's check, subst. (x,y) = (2.8,0.20) in EQN 1:
, good
Subst. (x,y)=(2.8,0.20) in EQN 2:
, good.
These two lines intersect @ point (2.8, 0.2)
Let's see the graph,
--->RED, EQN 1; GREEN, EQN 2
Thank you,
Jojo
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