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

Answer for Question Use elimination to solve this system of equations. 2r + 3s= 9 and 3r + 2s= 12. is given below:

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

Correct Answer is

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;

Conclusion:

This correct answer to this statement is 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;.

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