5.4x+3=42

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Solution for 5.4x+3=42 equation: 


Simplifying
5.4x + 3 = 42

Reorder the terms:
3 + 5.4x = 42

Solving
3 + 5.4x = 42

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 5.4x = 42 + -3

Combine like terms: 3 + -3 = 0
0 + 5.4x = 42 + -3
5.4x = 42 + -3

Combine like terms: 42 + -3 = 39
5.4x = 39

Divide each side by '5.4'.
x = 7.222222222

Simplifying
x = 7.222222222

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