Question

3x-2y =5 1supra 2x - 1supra3y =1prin metoda.substitutiei​

Answer 1

3x-2y=5 => 3x=5+2y => x=(5+2y)/3

x/2-y/3=1

x=(5+2y)/3

(5+2y)/3/2 - y/3 =1 amplificam pe y/3 cu 3

x=(5+2y)/3

(5+5y)/3 * 1/2=1

x=(5+2y)/3

(5+5y)/6=1 => 5+5y=6 => 5y=1

x=(5+1/5)/3 amplificam pe 5 cu 5

y=1/5

x=26/5 *1/3

y= 1/5

x=26/15

y=1/5