SOLUTION: Solve each system by the substitution method.
2x-y=4 3x-5y=2 I know what the answers are, but I cannot arrive at the answers thru my work. Please help.
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-> SOLUTION: Solve each system by the substitution method.
2x-y=4 3x-5y=2 I know what the answers are, but I cannot arrive at the answers thru my work. Please help.
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Question 287630: Solve each system by the substitution method.
2x-y=4 3x-5y=2 I know what the answers are, but I cannot arrive at the answers thru my work. Please help. Found 2 solutions by texttutoring, richwmiller:Answer by texttutoring(324) (Show Source):
You can put this solution on YOUR website! Two Equations:
Eqn 1: 2x-y=4
Eqn 2: 3x-5y=2
Isolate for y in either equation. I will choose Eqn 1.
y=2x-4
Substitute this value into Eqn 2:
3x-5(2x-4)=2
3x-10x+20=2
-7x+20=2
18=7x
x=18/7
Now substitute this value of x into Eqn 1 to find y:
y=2x-4
y=2(18/7)-4
y=8/7