Answer:
x=-2
Explanation:
First use distributive property
1/3*x and 1/3*-10
=1/3x-10/3=-4
Then add 10/3 on both sides so x can be by itself
=1/3x=-4+10/3
Then add -4 and 10/3
=1/3x=-2/3
Then multiply each side by the reciprocal of 1/3 which is 3/1
x=-2