2.1+0.3x=0.9

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Solution for 2.1+0.3x=0.9 equation: 


Simplifying
2.1 + 0.3x = 0.9

Solving
2.1 + 0.3x = 0.9

Solving for variable 'x'.

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

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 0.3x = 0.9 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 0.3x = 0.9 + -2.1
0.3x = 0.9 + -2.1

Combine like terms: 0.9 + -2.1 = -1.2
0.3x = -1.2

Divide each side by '0.3'.
x = -4

Simplifying
x = -4

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