40+2=x+43

Solution for 40+2=x+43 equation:

Simplifying
40 + 2 = x + 43

Combine like terms: 40 + 2 = 42
42 = x + 43

Reorder the terms:
42 = 43 + x

Solving
42 = 43 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
42 + -1x = 43 + x + -1x

Combine like terms: x + -1x = 0
42 + -1x = 43 + 0
42 + -1x = 43

Add '-42' to each side of the equation.
42 + -42 + -1x = 43 + -42

Combine like terms: 42 + -42 = 0
0 + -1x = 43 + -42
-1x = 43 + -42

Combine like terms: 43 + -42 = 1
-1x = 1

Divide each side by '-1'.
x = -1

Simplifying
x = -1