0.3(X-0.7)=1.9-0.2(0.4-X)

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Solution for 0.3(X-0.7)=1.9-0.2(0.4-X) equation: 


Simplifying
0.3(X + -0.7) = 1.9 + -0.2(0.4 + -1X)

Reorder the terms:
0.3(-0.7 + X) = 1.9 + -0.2(0.4 + -1X)
(-0.7 * 0.3 + X * 0.3) = 1.9 + -0.2(0.4 + -1X)
(-0.21 + 0.3X) = 1.9 + -0.2(0.4 + -1X)
-0.21 + 0.3X = 1.9 + (0.4 * -0.2 + -1X * -0.2)
-0.21 + 0.3X = 1.9 + (-0.08 + 0.2X)

Combine like terms: 1.9 + -0.08 = 1.82
-0.21 + 0.3X = 1.82 + 0.2X

Solving
-0.21 + 0.3X = 1.82 + 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.
-0.21 + 0.3X + -0.2X = 1.82 + 0.2X + -0.2X

Combine like terms: 0.3X + -0.2X = 0.1X
-0.21 + 0.1X = 1.82 + 0.2X + -0.2X

Combine like terms: 0.2X + -0.2X = 0.0
-0.21 + 0.1X = 1.82 + 0.0
-0.21 + 0.1X = 1.82

Add '0.21' to each side of the equation.
-0.21 + 0.21 + 0.1X = 1.82 + 0.21

Combine like terms: -0.21 + 0.21 = 0.00
0.00 + 0.1X = 1.82 + 0.21
0.1X = 1.82 + 0.21

Combine like terms: 1.82 + 0.21 = 2.03
0.1X = 2.03

Divide each side by '0.1'.
X = 20.3

Simplifying
X = 20.3

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