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Mathematics
Braeden Bowers
1 September, 19:30
12x-5y=20 y=x+4
3x+y=3 x=-y+3
+3
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Francis Green
1 September, 21:33
0
Standard form (which I assume is what they want you to turn these into) is y=mx+b.
12x-5y=20 is y=2.4x-4.
Subtract 12x from both sides, - 5y=-12x+20.
Multiply both sides by - 1, 5y=12x-20.
Divide both sides by 5, y=2.4x-4.
y=x+4 is already in standard form - I'm not quite sure what to do.
3x+y=3 is y=-3x+3.
Subtract 3x from both sides, y=-3x+3.
x=-y+3 is y=-x+3
Ad y to both sides, y+x=3.
Subtract x from both sides, y=-x+3.
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