Question 138029
adding 2x to the 2nd equation __ y=11+2x


SUBSTITUTING into the 1st equation __ 4x+4(11+2x)=-4 __ 4x+44+8x=-4 __ 12x=-48 __ x=-4


SUBSTITUTING into the 2nd equation __ -2(-4)+y=11 __ 8+y=11 __ y=3