0.40x+0.25(120)=0.20(78)

Solution for 0.40x+0.25(120)=0.20(78) equation:

Simplifying
0.40x + 0.25(120) = 0.20(78)

Multiply 0.25 * 120
0.40x + 30 = 0.20(78)

Reorder the terms:
30 + 0.40x = 0.20(78)

Multiply 0.20 * 78
30 + 0.40x = 15.6

Solving
30 + 0.40x = 15.6

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 0.40x = 15.6 + -30

Combine like terms: 30 + -30 = 0
0 + 0.40x = 15.6 + -30
0.40x = 15.6 + -30

Combine like terms: 15.6 + -30 = -14.4
0.40x = -14.4

Divide each side by '0.40'.
x = -36

Simplifying
x = -36