Answer:
x= -9
Step-by-step explanation:
-x+7= -4x-20
Move the variable to the left side and change its sign.
-x+4x+7=-20
Move constant to the right side and change its sign.
-x=4x= -20-7
Collect the like terms.
3x= -27
Divide both sides of the equation by 3.
x= -9
