Answer:
x = 106
Step-by-step explanation:
In order to solve for x, we have to isolate the x-term. In this case, we can do by adding 7 both sides:
[tex]\displaystyle{x-7+7=99+7}\\\\\displaystyle{x=99+7}\\\\\displaystyle{x=106}[/tex]
Hence, the value of x is 106. To check the answer, we can substitute x = 106 in the equation:
[tex]\displaystyle{x-7=99}\\\\\displaystyle{106-7=99}\\\\\displaystyle{99=99}[/tex]
Which is true. Therefore, x = 106 is the correct answer.
Answer:
106
Step-by-step explanation:
x-7=99
taking 7 to other side
(-7 becomes +7)
x=99+7
x=106
