Question

4x-2y=4 3x+5y=3
método de sustitucion

Answer 1

=> Sustitución: reemplazar .

=> 4x-2y=4. =>3x+5y=3
=> 2(2x-y)=4. =>3(2+y)+5y=3
=> 2x-y=2. =>6+3y+5y=3
=> 2x=2+y =>8y=-3
=>y=-3/8