Answer:
-10
Explanation:
first you have to solve the parenthesis so you do -5(2+x)=(-5⋅2)+(-5⋅x). after that you get -10-5x and you have to add the 2x from the equation before. you add -5x and 2x because they are like terms. after that you get -3x and you get the equation -3x-10=20. after that you add 10 to both sides resulting in -3x=30. after that you divide both sides by -3 and you get x=-10 so the answer is -10