A-2.1=-4.5

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Solution for A-2.1=-4.5 equation: 


Simplifying
A + -2.1 = -4.5

Reorder the terms:
-2.1 + A = -4.5

Solving
-2.1 + A = -4.5

Solving for variable 'A'.

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

Add '2.1' to each side of the equation.
-2.1 + 2.1 + A = -4.5 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + A = -4.5 + 2.1
A = -4.5 + 2.1

Combine like terms: -4.5 + 2.1 = -2.4
A = -2.4

Simplifying
A = -2.4

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