Question 708054
wihtout solving, decide which meathod you would use to solve each system: graphing, substitution, or elimination. explain. 
y=3x-1
y=4x 
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Substitute for "y" and solve for "x":
4x = 3x-1
x = -1
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Solve for "y":
y = 4x
y = 4*-1 = -4
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and 
4s-3t=8
t=-2s-1
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Substitute for "t" and solve for "s":
4s - 3(-2s-1) = 8
4s - 6s + 3 = 8
-2s = 5
s = -5/2
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Solve for "t":
t = -2s-1
t = -2(-5/2) - 1
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t = 5-1 = 4
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Cheers,
Stan H.