Answer:
x=1
Step-by-step explanation:
-31+(-4x) = -5+(-5)(1+5x)
-31-4x = -5+(-5)+(-25x) : Adding a negative is the same as subtracting and I distributed the -5
-31 = -5 + -5 -21x : added 4x to both sides
-31 = -10 -21x : added -5 and -5
-21 = -21x : added 10 to both sides
x=1 : divided both sides by -21, division of 2 negatives is a positive
