Question

1) 9y+7-2y= -35+4y+78
2)5x= 8x-15
3)y-5=3y-25
4)7y-o-3y=2y+34-5y
5) 8x-9-12x=4x-13-5x
6)5y+6y-81=7y+102+65y
7)16+7x-5+x=11x-3-x

Answer 1

1) 9y-2y-4y=7+35-78
-15y=-36

2)5x-8x=-15
13x=-15
= 13x-15

3) y+3y=-5+25
4y=20
=4y+20

4) 7y-3y+2y-5y=-o
1y=-o
=1y-o

5) 8x-12x+4x+5x=-9-13
5x=-22
=5x-22

6) 5y+6y+7y-65y=-81-102
-57y=-183
-57y-183

7) 7x+x+11x+x=16+5-11+3
20x=13
= 20x+13