Question

resolver el metodo de reduccion 2x-2y=15 x+y=1

Answer 1

2x-2y=15; x+y=1
(-1) -2x+2y=-15; (2)2x+2y=2
4y=13
y=13/4

x+y=1; x+(13/4)=1; x=-13/4*1; x=-9/4