Question

por algun metodo :
3x-2y =6
7x-2y=10

Answer 1

3x-2y=-6 7x-2y=10 ______________ x= (-6 +2y)/3 x= (10+2y)/7 (-6 +2y)/3=(10+2y)/7 7(-6+2y) = 3(10+2y) -42+14y = 30+6y -42-30=6y-14y -8y= -72 y=-72/-8 y=9 3x-2y=-6 3x-2(9)=-6 3x-18=-6 3x= -6+18 3x=12 x=12/3 x=4