To determine if x=5 is a solution, plug-in this to the equation.

`-7+x=2`

`-7+5=2`

`-2=2` (False)

**Since the resulting condition is False, hence x=5 is not the solution of `-7 + x = 2` .**

To determine the solution of the given equation, move 7 to the right. To do so, add both sides by 7.

`-7+x=2`

`-7+7+x=2+7`

`x=9`

**Hence, the solution of `-7+x=2` is `x=9` .**

There are two ways to figure out whether x=5 is the solution to -7+x=2.

The first way is to solve the equation to find " x " the second way is to plug in " x" since you know what it is

The First Way :

**-7 + x = 2 **add 7 on both sides

By adding, you should get

**x = 9** which means that x does not equal 5

The Second Way :

**-7 + 5 = 2 **add -7 and 5

By adding, you should get

**-2 = 2 **since -2 does not = to 2 your " x " variable will not = to 5

-7+x=2 x=5 plug in the 5

-7+5=2

-7+5=-2 so it is false, in order to find the real one you should do the following

-7+x=2

+7 +7

x=9 so 9 is the real answer