Hey there! :)
-9 - 4x = 7 ; find x.
In order to find the value of x, we must isolate the variable. This simply means that we need to get x alone on its own side of the equal sign.
We can start by adding 9 to both sides.
-9 + 9 - 4x = 7 + 9
Simplify!
-4x = 16
Then, divide both sides by -4.
-4x ÷ -4 = 16 ÷ -4
Simplify.
x = -4
Your final answer is : x = -4
Hope this helped! :)
