X=(1.225)(X-4)

Solution for X=(1.225)(X-4) equation:

Simplifying
X = (1.225)(X + -4)

Reorder the terms:
X = 1.225(-4 + X)
X = (-4 * 1.225 + X * 1.225)
X = (-4.9 + 1.225X)

Solving
X = -4.9 + 1.225X

Solving for variable 'X'.

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

Add '-1.225X' to each side of the equation.
X + -1.225X = -4.9 + 1.225X + -1.225X

Combine like terms: X + -1.225X = -0.225X
-0.225X = -4.9 + 1.225X + -1.225X

Combine like terms: 1.225X + -1.225X = 0.000
-0.225X = -4.9 + 0.000
-0.225X = -4.9

Divide each side by '-0.225'.
X = 21.77777778

Simplifying
X = 21.77777778