300=-222+a

Solution for 300=-222+a equation:

Simplifying
300 = -222 + a

Solving
300 = -222 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
300 + -1a = -222 + a + -1a

Combine like terms: a + -1a = 0
300 + -1a = -222 + 0
300 + -1a = -222

Add '-300' to each side of the equation.
300 + -300 + -1a = -222 + -300

Combine like terms: 300 + -300 = 0
0 + -1a = -222 + -300
-1a = -222 + -300

Combine like terms: -222 + -300 = -522
-1a = -522

Divide each side by '-1'.
a = 522

Simplifying
a = 522