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Thalia Bradshaw
Mathematics
7 February, 20:51
Solve y=x+3 and 2x+y=-6 by substitution
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Maddox Perry
7 February, 21:09
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Hope this is right ...
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Cameron Taylor
7 February, 21:13
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x = - 3
Step-by-step explanation:
substitute y in the second equation for x + 3:
2x + (x + 3) = - 6
2x + x + 3 = - 6
3x + 3 = - 6
-3 - 3
3x = - 9
/3 / 3
x = - 3
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