Solve the following equation
b+41-31-13=81
Solve for b
b + 41 - 31 - 13 = 81
Group the constants on the left
41 - 31 - 13 = -3
Form modified equation
b - 3 = + 81
Group constants
Group our constants -3 and 81.
add 3 to both sides
b - 3 + 3 = 81 + 3
Cancel 3 on the left side:
b = 84
Final Answer
b = 84
