-1.40(30)+0.80x=0.20(30+x)

Solution for -1.40(30)+0.80x=0.20(30+x) equation:

Simplifying
-1.40(30) + 0.80x = 0.20(30 + x)

Multiply -1.40 * 30
-42 + 0.80x = 0.20(30 + x)
-42 + 0.80x = (30 * 0.20 + x * 0.20)
-42 + 0.80x = (6 + 0.20x)

Solving
-42 + 0.80x = 6 + 0.20x

Solving for variable 'x'.

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

Add '-0.20x' to each side of the equation.
-42 + 0.80x + -0.20x = 6 + 0.20x + -0.20x

Combine like terms: 0.80x + -0.20x = 0.6x
-42 + 0.6x = 6 + 0.20x + -0.20x

Combine like terms: 0.20x + -0.20x = 0.00
-42 + 0.6x = 6 + 0.00
-42 + 0.6x = 6

Add '42' to each side of the equation.
-42 + 42 + 0.6x = 6 + 42

Combine like terms: -42 + 42 = 0
0 + 0.6x = 6 + 42
0.6x = 6 + 42

Combine like terms: 6 + 42 = 48
0.6x = 48

Divide each side by '0.6'.
x = 80

Simplifying
x = 80