3.5+a=7.8

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Solution for 3.5+a=7.8 equation: 


Simplifying
3.5 + a = 7.8

Solving
3.5 + a = 7.8

Solving for variable 'a'.

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

Add '-3.5' to each side of the equation.
3.5 + -3.5 + a = 7.8 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + a = 7.8 + -3.5
a = 7.8 + -3.5

Combine like terms: 7.8 + -3.5 = 4.3
a = 4.3

Simplifying
a = 4.3

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