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In the system -12c+3d=6 and -3c +6d=-9, which expression could you use for substitution

In the system -12c+3d=6 and -3c +6d=-9, which expression could you use for substitution
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In the system -12c+3d=6 and -3c +6d=-9, which expression could you use for substitution

User Alexander Stolz
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you can not use either of them because neither of them have a variable= to the eqaution
ex.) y= 3x+25
User Neat Machine
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User Kirander
asked Jun 21, 2018 133k views
In the system –12c + 3d = 6 and –3c + 6d = –9, which expression could you use for substitution?
Kirander asked Jun 21, 2018
by Kirander
7.7k points
2 answers
3 votes
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