0.3(0.7x-0.4)=0.2x

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Solution for 0.3(0.7x-0.4)=0.2x equation: 


Simplifying
0.3(0.7x + -0.4) = 0.2x

Reorder the terms:
0.3(-0.4 + 0.7x) = 0.2x
(-0.4 * 0.3 + 0.7x * 0.3) = 0.2x
(-0.12 + 0.21x) = 0.2x

Solving
-0.12 + 0.21x = 0.2x

Solving for variable 'x'.

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

Add '-0.2x' to each side of the equation.
-0.12 + 0.21x + -0.2x = 0.2x + -0.2x

Combine like terms: 0.21x + -0.2x = 0.01x
-0.12 + 0.01x = 0.2x + -0.2x

Combine like terms: 0.2x + -0.2x = 0.0
-0.12 + 0.01x = 0.0

Add '0.12' to each side of the equation.
-0.12 + 0.12 + 0.01x = 0.0 + 0.12

Combine like terms: -0.12 + 0.12 = 0.00
0.00 + 0.01x = 0.0 + 0.12
0.01x = 0.0 + 0.12

Combine like terms: 0.0 + 0.12 = 0.12
0.01x = 0.12

Divide each side by '0.01'.
x = 12

Simplifying
x = 12

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