Answer:
-4.4
Explanation:
In order to do this, we need to move the variables to one side, and the numerical values to the other.
-20-7x=-2x+2
We can do this by adding 7x to both sides first
-20=5x+2
Now we can subtract 2 from both sides.
-22=5x
Next, we can divide each side by 5.
x=-22/5
Then we simplify the fraction
x=-4.4