3x-2.1=x+8.2

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Solution for 3x-2.1=x+8.2 equation:


Simplifying
3x + -2.1 = x + 8.2

Reorder the terms:
-2.1 + 3x = x + 8.2

Reorder the terms:
-2.1 + 3x = 8.2 + x

Solving
-2.1 + 3x = 8.2 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-2.1 + 3x + -1x = 8.2 + x + -1x

Combine like terms: 3x + -1x = 2x
-2.1 + 2x = 8.2 + x + -1x

Combine like terms: x + -1x = 0
-2.1 + 2x = 8.2 + 0
-2.1 + 2x = 8.2

Add '2.1' to each side of the equation.
-2.1 + 2.1 + 2x = 8.2 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + 2x = 8.2 + 2.1
2x = 8.2 + 2.1

Combine like terms: 8.2 + 2.1 = 10.3
2x = 10.3

Divide each side by '2'.
x = 5.15

Simplifying
x = 5.15

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