.1x-.05(x-20)=1.2

Solution for .1x-.05(x-20)=1.2 equation:

Simplifying
0.1x + -0.05(x + -20) = 1.2

Reorder the terms:
0.1x + -0.05(-20 + x) = 1.2
0.1x + (-20 * -0.05 + x * -0.05) = 1.2
0.1x + (1 + -0.05x) = 1.2

Reorder the terms:
1 + 0.1x + -0.05x = 1.2

Combine like terms: 0.1x + -0.05x = 0.05x
1 + 0.05x = 1.2

Solving
1 + 0.05x = 1.2

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 0.05x = 1.2 + -1

Combine like terms: 1 + -1 = 0
0 + 0.05x = 1.2 + -1
0.05x = 1.2 + -1

Combine like terms: 1.2 + -1 = 0.2
0.05x = 0.2

Divide each side by '0.05'.
x = 4

Simplifying
x = 4