.9x-2.1+.4=.2(5-X)

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Solution for .9x-2.1+.4=.2(5-X) equation: 


Simplifying
0.9x + -2.1 + 0.4 = 0.2(5 + -1X)

Reorder the terms:
-2.1 + 0.4 + 0.9x = 0.2(5 + -1X)

Combine like terms: -2.1 + 0.4 = -1.7
-1.7 + 0.9x = 0.2(5 + -1X)
-1.7 + 0.9x = (5 * 0.2 + -1X * 0.2)
-1.7 + 0.9x = (1 + -0.2X)

Solving
-1.7 + 0.9x = 1 + -0.2X

Solving for variable 'x'.

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

Add '1.7' to each side of the equation.
-1.7 + 1.7 + 0.9x = 1 + 1.7 + -0.2X

Combine like terms: -1.7 + 1.7 = 0.0
0.0 + 0.9x = 1 + 1.7 + -0.2X
0.9x = 1 + 1.7 + -0.2X

Combine like terms: 1 + 1.7 = 2.7
0.9x = 2.7 + -0.2X

Divide each side by '0.9'.
x = 3 + -0.2222222222X

Simplifying
x = 3 + -0.2222222222X

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