3c-2d=2

3c+4d=30

Solve each system of equations by using elimination

Question

12-10-2015
Mathematics

Answered

3c-2d=2

3c+4d=30

Solve each system of equations by using elimination

Verified Answer :

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crisforp crisforp · Answer 1 · 2015-10-13T05:20:43-04:00

3c - 2d = 2 / × ( - 1 ) ;
You obtain -3c + 2d = - 2 ;
But, +3c + 4d = 30 ;
_______________(+)
/ 6d = 28 ;
d = 28 / 6 = 14 / 3 ;
Finally, 3c - 2 * ( 14 /3 ) = 2 ;
3c - 28 / 3 = 2 ;
9c / 3 - 28 / 3 = 6 / 3 ;
9c - 28 = 6 ;
9c = 6 + 28 ;
9c = 34 ;
c = 34 / 9 ;

3c-2d=2 3c+4d=30 Solve each system of equations by using elimination

Verified Answer :

Related Questions

3c-2d=2

3c+4d=30

Solve each system of equations by using elimination