3(a-1)=4(s+12)

Solution for 3(a-1)=4(s+12) equation:

Simplifying
3(a + -1) = 4(s + 12)

Reorder the terms:
3(-1 + a) = 4(s + 12)
(-1 * 3 + a * 3) = 4(s + 12)
(-3 + 3a) = 4(s + 12)

Reorder the terms:
-3 + 3a = 4(12 + s)
-3 + 3a = (12 * 4 + s * 4)
-3 + 3a = (48 + 4s)

Solving
-3 + 3a = 48 + 4s

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + 3a = 48 + 3 + 4s

Combine like terms: -3 + 3 = 0
0 + 3a = 48 + 3 + 4s
3a = 48 + 3 + 4s

Combine like terms: 48 + 3 = 51
3a = 51 + 4s

Divide each side by '3'.
a = 17 + 1.333333333s

Simplifying
a = 17 + 1.333333333s