Answer :

add like terms first
-7x - 3x = -10x

so we have  -10x + 2 = -8x - 8
-> 2 = 2x - 8   [added 10x to both sides]
-> 10 = 2x      [added 8 to both sides]
-> x = 5          [divided both sides by 2

therefore the answer is  x = 5
add like terms 10x add 10x to both sides add 8 to both sides the answer is x=5