11-02-2014
Mathematics

Answered

Use elimination to solve this system of equations. 2r + 3s= 9 and 3r + 2s= 12

Answer :

crisforp crisforp

11-02-2014

2r + 3s= 9 <=> -6r -9s = -27;
3r + 2s= 12 <=> 6r + 4s = 24;
=> 0*r -5*s = -3 => s = 3/5;

2*r + 3*(3/5) = 9<=> 10*r + 9 = 45 <=> 10*r = 36 => r = 18/5;

Answer Link

chloeholmes chloeholmes

02-02-2020

Answer:

(18/5,3/5)

Step-by-step explanation:

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