100x-0.28=300x+0.42

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Solution for 100x-0.28=300x+0.42 equation: 


Simplifying
100x + -0.28 = 300x + 0.42

Reorder the terms:
-0.28 + 100x = 300x + 0.42

Reorder the terms:
-0.28 + 100x = 0.42 + 300x

Solving
-0.28 + 100x = 0.42 + 300x

Solving for variable 'x'.

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

Add '-300x' to each side of the equation.
-0.28 + 100x + -300x = 0.42 + 300x + -300x

Combine like terms: 100x + -300x = -200x
-0.28 + -200x = 0.42 + 300x + -300x

Combine like terms: 300x + -300x = 0
-0.28 + -200x = 0.42 + 0
-0.28 + -200x = 0.42

Add '0.28' to each side of the equation.
-0.28 + 0.28 + -200x = 0.42 + 0.28

Combine like terms: -0.28 + 0.28 = 0.00
0.00 + -200x = 0.42 + 0.28
-200x = 0.42 + 0.28

Combine like terms: 0.42 + 0.28 = 0.7
-200x = 0.7

Divide each side by '-200'.
x = -0.0035

Simplifying
x = -0.0035

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