SOLUTION: I need help to solve by substitution or addition, whichever one is easier. Please show me in detail how to work this problem.
2y - x = 3
x = 3y - 5
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Question 321141: I need help to solve by substitution or addition, whichever one is easier. Please show me in detail how to work this problem.
2y - x = 3
x = 3y - 5
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
2y - x = 3
x = 3y - 5
..
2y-x=3
x-3y=-5
..
Add both the equations
2y-x+x-3y=3-5
-y=-2
y=-2/-1
y=2
plug the value of y in any of the equations
2y-x=3
2*2-x=3
4-x=3
-x=-4+3
-x=-1
x=1
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