6.4+1.2x+.3x=.4

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Solution for 6.4+1.2x+.3x=.4 equation:


Simplifying
6.4 + 1.2x + 0.3x = 0.4

Combine like terms: 1.2x + 0.3x = 1.5x
6.4 + 1.5x = 0.4

Solving
6.4 + 1.5x = 0.4

Solving for variable 'x'.

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

Add '-6.4' to each side of the equation.
6.4 + -6.4 + 1.5x = 0.4 + -6.4

Combine like terms: 6.4 + -6.4 = 0.0
0.0 + 1.5x = 0.4 + -6.4
1.5x = 0.4 + -6.4

Combine like terms: 0.4 + -6.4 = -6
1.5x = -6

Divide each side by '1.5'.
x = -4

Simplifying
x = -4

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