2a+7.9=15.7

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Solution for 2a+7.9=15.7 equation: 


Simplifying
2a + 7.9 = 15.7

Reorder the terms:
7.9 + 2a = 15.7

Solving
7.9 + 2a = 15.7

Solving for variable 'a'.

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

Add '-7.9' to each side of the equation.
7.9 + -7.9 + 2a = 15.7 + -7.9

Combine like terms: 7.9 + -7.9 = 0.0
0.0 + 2a = 15.7 + -7.9
2a = 15.7 + -7.9

Combine like terms: 15.7 + -7.9 = 7.8
2a = 7.8

Divide each side by '2'.
a = 3.9

Simplifying
a = 3.9

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