0.3*4000=x

Solution for 0.3*4000=x equation:

Simplifying
0.3 * 4000 = x

Multiply 0.3 * 4000
1200 = x

Solving
1200 = 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.
1200 + -1x = x + -1x

Combine like terms: x + -1x = 0
1200 + -1x = 0

Add '-1200' to each side of the equation.
1200 + -1200 + -1x = 0 + -1200

Combine like terms: 1200 + -1200 = 0
0 + -1x = 0 + -1200
-1x = 0 + -1200

Combine like terms: 0 + -1200 = -1200
-1x = -1200

Divide each side by '-1'.
x = 1200

Simplifying
x = 1200