4.3x-2.1x+8.4=15

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Solution for 4.3x-2.1x+8.4=15 equation:


Simplifying
4.3x + -2.1x + 8.4 = 15

Reorder the terms:
8.4 + 4.3x + -2.1x = 15

Combine like terms: 4.3x + -2.1x = 2.2x
8.4 + 2.2x = 15

Solving
8.4 + 2.2x = 15

Solving for variable 'x'.

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

Add '-8.4' to each side of the equation.
8.4 + -8.4 + 2.2x = 15 + -8.4

Combine like terms: 8.4 + -8.4 = 0.0
0.0 + 2.2x = 15 + -8.4
2.2x = 15 + -8.4

Combine like terms: 15 + -8.4 = 6.6
2.2x = 6.6

Divide each side by '2.2'.
x = 3

Simplifying
x = 3

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