3a+7b=8.9

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Solution for 3a+7b=8.9 equation: 


Simplifying
3a + 7b = 8.9

Solving
3a + 7b = 8.9

Solving for variable 'a'.

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

Add '-7b' to each side of the equation.
3a + 7b + -7b = 8.9 + -7b

Combine like terms: 7b + -7b = 0
3a + 0 = 8.9 + -7b
3a = 8.9 + -7b

Divide each side by '3'.
a = 2.966666667 + -2.333333333b

Simplifying
a = 2.966666667 + -2.333333333b

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