78=b-43

Solution for 78=b-43 equation:

Simplifying
78 = b + -43

Reorder the terms:
78 = -43 + b

Solving
78 = -43 + 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.
78 + -1b = -43 + b + -1b

Combine like terms: b + -1b = 0
78 + -1b = -43 + 0
78 + -1b = -43

Add '-78' to each side of the equation.
78 + -78 + -1b = -43 + -78

Combine like terms: 78 + -78 = 0
0 + -1b = -43 + -78
-1b = -43 + -78

Combine like terms: -43 + -78 = -121
-1b = -121

Divide each side by '-1'.
b = 121

Simplifying
b = 121