-31+(-46)=b

Solution for -31+(-46)=b equation:

Simplifying
-31 + (-46) = b
-31 + -46 = b

Combine like terms: -31 + -46 = -77
-77 = b

Solving
-77 = b

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '-1b' to each side of the equation.
-77 + -1b = b + -1b

Combine like terms: b + -1b = 0
-77 + -1b = 0

Add '77' to each side of the equation.
-77 + 77 + -1b = 0 + 77

Combine like terms: -77 + 77 = 0
0 + -1b = 0 + 77
-1b = 0 + 77

Combine like terms: 0 + 77 = 77
-1b = 77

Divide each side by '-1'.
b = -77

Simplifying
b = -77