x+2.1+5.7=1.3

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Solution for x+2.1+5.7=1.3 equation: 


Simplifying
x + 2.1 + 5.7 = 1.3

Reorder the terms:
2.1 + 5.7 + x = 1.3

Combine like terms: 2.1 + 5.7 = 7.8
7.8 + x = 1.3

Solving
7.8 + x = 1.3

Solving for variable 'x'.

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

Add '-7.8' to each side of the equation.
7.8 + -7.8 + x = 1.3 + -7.8

Combine like terms: 7.8 + -7.8 = 0.0
0.0 + x = 1.3 + -7.8
x = 1.3 + -7.8

Combine like terms: 1.3 + -7.8 = -6.5
x = -6.5

Simplifying
x = -6.5

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