3-a=3(1+a)

Solution for 3-a=3(1+a) equation:

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

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

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

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

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

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

Combine like terms: 3a + -3a = 0
-4a = 0

Divide each side by '-4'.
a = 0

Simplifying
a = 0