3a=7-a

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Solution for 3a=7-a equation: 


Simplifying
3a = 7 + -1a

Solving
3a = 7 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
3a + a = 7 + -1a + a

Combine like terms: 3a + a = 4a
4a = 7 + -1a + a

Combine like terms: -1a + a = 0
4a = 7 + 0
4a = 7

Divide each side by '4'.
a = 1.75

Simplifying
a = 1.75

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