Solve, using the substitution method. 2x + 4y = 16 x – 7 = – 4y

Question

I need help please

Answer 1

line 1...2x+4y=16 or x+2y=8

line 2...x -7=-4y or x+4y=7

me gonna subtrakt line 1 from line2...(x-x) +(4y -2y)=7-8

2y=-1, so y=-0.5

line 1...x=8-2y =8+1

x=9

Answer 2

x-7=-4y

or,x=7-4y

2x+4y=16

or,2(7-4y)=16

or,14-8y=16

or,8y=-2

or,y=-1/4

x=7-4(-1/4)=7+1=8