The answer to the problem of 12X plus 13 equals 9 is x equals -1/3.
(1, 9)
x=-1/2
The answer to 1 over 2x plus 13 equals 9 is x equals -8.
The answer to the problem of 13 equals -4x plus 9 is x equals -1.
-11
76
3x = 8 x = 2.666
7
x=4
-2x+9=x+1-x........-x-3x+9=1.....-9...-9-3x=-8-3x/-3 | -8/-3\ /........\ /x=8/3
7