Question 128594
Solve by substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent. 
3x – 4y = 0
2y = x + 1

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x= 2y-1
Substitute to solve for "y":
3(2y-1)-4y = 0
2y=3
y = 3/2

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Substitute into x = 2y-1 to solve for "x":
x = 2(3/2)-1
x = 2
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Final solution: x = 2 ; y = 3/2
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Cheers,
Stan H.