1.2+.3x=.9

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Solution for 1.2+.3x=.9 equation: 


Simplifying
1.2 + 0.3x = 0.9

Solving
1.2 + 0.3x = 0.9

Solving for variable 'x'.

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

Add '-1.2' to each side of the equation.
1.2 + -1.2 + 0.3x = 0.9 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + 0.3x = 0.9 + -1.2
0.3x = 0.9 + -1.2

Combine like terms: 0.9 + -1.2 = -0.3
0.3x = -0.3

Divide each side by '0.3'.
x = -1

Simplifying
x = -1

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