.75a+9=6+a

Solution for .75a+9=6+a equation:

Simplifying
0.75a + 9 = 6 + a

Reorder the terms:
9 + 0.75a = 6 + a

Solving
9 + 0.75a = 6 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
9 + 0.75a + -1a = 6 + a + -1a

Combine like terms: 0.75a + -1a = -0.25a
9 + -0.25a = 6 + a + -1a

Combine like terms: a + -1a = 0
9 + -0.25a = 6 + 0
9 + -0.25a = 6

Add '-9' to each side of the equation.
9 + -9 + -0.25a = 6 + -9

Combine like terms: 9 + -9 = 0
0 + -0.25a = 6 + -9
-0.25a = 6 + -9

Combine like terms: 6 + -9 = -3
-0.25a = -3

Divide each side by '-0.25'.
a = 12

Simplifying
a = 12