2a+4.2=3.1-s

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Solution for 2a+4.2=3.1-s equation:


Simplifying
2a + 4.2 = 3.1 + -1s

Reorder the terms:
4.2 + 2a = 3.1 + -1s

Solving
4.2 + 2a = 3.1 + -1s

Solving for variable 'a'.

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

Add '-4.2' to each side of the equation.
4.2 + -4.2 + 2a = 3.1 + -4.2 + -1s

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + 2a = 3.1 + -4.2 + -1s
2a = 3.1 + -4.2 + -1s

Combine like terms: 3.1 + -4.2 = -1.1
2a = -1.1 + -1s

Divide each side by '2'.
a = -0.55 + -0.5s

Simplifying
a = -0.55 + -0.5s

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