Question

2x+4y+8-x+2y-4=
6x+8+8y-6x-4-2y=
15x+5+6y-10x-2y-3=

Answer 1

A. 2x-x+4y+2y+8-4
2x-x=x
X+4y+2y+8-4
+4y+2y=6y
X+6y+8-4
+8-4=+4
X+6y+4



B. 6x-6x+8-4+8y-2y
6x-6x=0
0+8-4+8y-2y
8-4= +4
+4+8y-2y
+8y-2y= +6y
4+6y




C. 15x-10x+5-3+6y-2y
15x-10x=5x
5x+5-3+6y-2y
5-3=2
5x+2+6y-2y
6y-2y= 4y
5x+2+4y