Question 371647
): what is the answer to the following equation using the substitution: 
x=3y-1, 
x+2y=9 
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Substitute for "x" and solve for "y":
3y-1 + 2y = 9
5y =10
y = 2
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Since x = 3y-1, x = 3*2-1 = 5
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Cheers,
Stan H.