2.1x-8.1=3.15-5.4

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Solution for 2.1x-8.1=3.15-5.4 equation: 


Simplifying
2.1x + -8.1 = 3.15 + -5.4

Reorder the terms:
-8.1 + 2.1x = 3.15 + -5.4

Combine like terms: 3.15 + -5.4 = -2.25
-8.1 + 2.1x = -2.25

Solving
-8.1 + 2.1x = -2.25

Solving for variable 'x'.

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

Add '8.1' to each side of the equation.
-8.1 + 8.1 + 2.1x = -2.25 + 8.1

Combine like terms: -8.1 + 8.1 = 0.0
0.0 + 2.1x = -2.25 + 8.1
2.1x = -2.25 + 8.1

Combine like terms: -2.25 + 8.1 = 5.85
2.1x = 5.85

Divide each side by '2.1'.
x = 2.785714286

Simplifying
x = 2.785714286

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