A+3.7=4.2

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Solution for A+3.7=4.2 equation: 


Simplifying
A + 3.7 = 4.2

Reorder the terms:
3.7 + A = 4.2

Solving
3.7 + A = 4.2

Solving for variable 'A'.

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

Add '-3.7' to each side of the equation.
3.7 + -3.7 + A = 4.2 + -3.7

Combine like terms: 3.7 + -3.7 = 0.0
0.0 + A = 4.2 + -3.7
A = 4.2 + -3.7

Combine like terms: 4.2 + -3.7 = 0.5
A = 0.5

Simplifying
A = 0.5

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