0.05(x+20)-0.07(x-30)=1.9

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Solution for 0.05(x+20)-0.07(x-30)=1.9 equation: 


Simplifying
0.05(x + 20) + -0.07(x + -30) = 1.9

Reorder the terms:
0.05(20 + x) + -0.07(x + -30) = 1.9
(20 * 0.05 + x * 0.05) + -0.07(x + -30) = 1.9
(1 + 0.05x) + -0.07(x + -30) = 1.9

Reorder the terms:
1 + 0.05x + -0.07(-30 + x) = 1.9
1 + 0.05x + (-30 * -0.07 + x * -0.07) = 1.9
1 + 0.05x + (2.1 + -0.07x) = 1.9

Reorder the terms:
1 + 2.1 + 0.05x + -0.07x = 1.9

Combine like terms: 1 + 2.1 = 3.1
3.1 + 0.05x + -0.07x = 1.9

Combine like terms: 0.05x + -0.07x = -0.02x
3.1 + -0.02x = 1.9

Solving
3.1 + -0.02x = 1.9

Solving for variable 'x'.

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

Add '-3.1' to each side of the equation.
3.1 + -3.1 + -0.02x = 1.9 + -3.1

Combine like terms: 3.1 + -3.1 = 0.0
0.0 + -0.02x = 1.9 + -3.1
-0.02x = 1.9 + -3.1

Combine like terms: 1.9 + -3.1 = -1.2
-0.02x = -1.2

Divide each side by '-0.02'.
x = 60

Simplifying
x = 60

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