2.1X-7.0=3.5

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Solution for 2.1X-7.0=3.5 equation: 


Simplifying
2.1X + -7.0 = 3.5

Reorder the terms:
-7.0 + 2.1X = 3.5

Solving
-7.0 + 2.1X = 3.5

Solving for variable 'X'.

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

Add '7.0' to each side of the equation.
-7.0 + 7.0 + 2.1X = 3.5 + 7.0

Combine like terms: -7.0 + 7.0 = 0.0
0.0 + 2.1X = 3.5 + 7.0
2.1X = 3.5 + 7.0

Combine like terms: 3.5 + 7.0 = 10.5
2.1X = 10.5

Divide each side by '2.1'.
X = 5

Simplifying
X = 5

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