3(a-b)=a

Solution for 3(a-b)=a equation:

Simplifying
3(a + -1b) = a
(a * 3 + -1b * 3) = a
(3a + -3b) = a

Solving
3a + -3b = 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.
3a + -1a + -3b = a + -1a

Combine like terms: 3a + -1a = 2a
2a + -3b = a + -1a

Combine like terms: a + -1a = 0
2a + -3b = 0

Add '3b' to each side of the equation.
2a + -3b + 3b = 0 + 3b

Combine like terms: -3b + 3b = 0
2a + 0 = 0 + 3b
2a = 0 + 3b
Remove the zero:
2a = 3b

Divide each side by '2'.
a = 1.5b

Simplifying
a = 1.5b