Question

9x=-9

13x=13

4x=-12

-21=7x

25x=0

-x=9

3x-4=10+5x

7x-2+4=10+5x

Answer 1

9x=-9 
x = -9/9
x = -1

13x=13
x = 13/13
x = 1

4x=-12
x = -12/4
x = -3

-21=7x
7x = -21
x = -21/7
x = -3

25x=0
x = 0/25
x = 0

-x=9
-x = 9.(-1)
x = -9

3x-4=10+5x
3x - 5x = 10 +4
-2x = 14 .(-1)
2x = -14
x = -14/2
x = -7

7x-2+4=10+5x
7x - 5x = 10 + 2 - 4
2x = 8
x = 8/2
x = 4

vlw!