-59 = -(b − -55)
Pretend that there is a -1 in front of the bracket.
-59= -1(b--55)
Multiply the bracket by -1
-59= -1(b)-1(--55)
-59= -b-55
Move -55 to the other side. Sign changes from -55 to 55
-59+55= -b-55+55
-59+55= -b
-4= -b
Multiply by -1
-4(-1)= -b(-1)
4= b
Answer: b= 4
