3x+3(3.89)=12

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Solution for 3x+3(3.89)=12 equation: 


Simplifying
3x + 3(3.89) = 12

Multiply 3 * 3.89
3x + 11.67 = 12

Reorder the terms:
11.67 + 3x = 12

Solving
11.67 + 3x = 12

Solving for variable 'x'.

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

Add '-11.67' to each side of the equation.
11.67 + -11.67 + 3x = 12 + -11.67

Combine like terms: 11.67 + -11.67 = 0.00
0.00 + 3x = 12 + -11.67
3x = 12 + -11.67

Combine like terms: 12 + -11.67 = 0.33
3x = 0.33

Divide each side by '3'.
x = 0.11

Simplifying
x = 0.11

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