Answer:
x = -6
Step-by-step explanation:
Step 1:
Simplify
-1/7x + -2/3 = 4/21
Step 2:
Add 2/3 to both sides
-1/7x + -2/3 + 2/3 = 4/21 + 2/3
-1/7x = 6/7
Step 3:
Multiply both sides by 7/-1
7/-1 x -1/7x = 7/-1 x 6/7
