7=9-3a

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Solution for 7=9-3a equation:


Simplifying
7 = 9 + -3a

Solving
7 = 9 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
7 + 3a = 9 + -3a + 3a

Combine like terms: -3a + 3a = 0
7 + 3a = 9 + 0
7 + 3a = 9

Add '-7' to each side of the equation.
7 + -7 + 3a = 9 + -7

Combine like terms: 7 + -7 = 0
0 + 3a = 9 + -7
3a = 9 + -7

Combine like terms: 9 + -7 = 2
3a = 2

Divide each side by '3'.
a = 0.6666666667

Simplifying
a = 0.6666666667

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