Question 1201467
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Substitution Method:
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1,)
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X +3y = 11
2x - y = -6
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Try {{{x=11-3y}}}
and substitute continuing with {{{2(11-3y)-y=-6}}}.



2.) 
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x -2y = 5
X = 2y + 11
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Most obvious, substitute for x, continuing with {{{(2y+11)-2y=5}}}, ... and find what happens.