Answer:
3
Step-by-step explanation:
subtract 7 from both sides. divide both sides by -3
-3x+7= -2
Move +7 to the other side. Sign changes from +7 to -7.
-3x+7-7= -2-7
-3x= -9
Divide by -3 for both sides
-3x/-3= -9/-3
x= 3
answer : x= 3
