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Rachael Lawson
Mathematics
16 July, 21:10
Solving y=6x-11-2x-3y=-7 by substitution
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Perkins
16 July, 21:28
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y=6x-11
-2x-3y=-7
substitute y=6x-11 into - 2x-3y=-7
-2x-3y=-7
-2x-3 (6x-11) = - 7
-2x - 18x + 33 = - 7
-20x = - 40
x = 2
y = 6x - 11
y = 6 (2) - 11
y = 1
answer
x = 2 and y = 1
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