3.3(a-2)=2.2(a-1)

Solution for 3.3(a-2)=2.2(a-1) equation:

Simplifying
3.3(a + -2) = 2.2(a + -1)

Reorder the terms:
3.3(-2 + a) = 2.2(a + -1)
(-2 * 3.3 + a * 3.3) = 2.2(a + -1)
(-6.6 + 3.3a) = 2.2(a + -1)

Reorder the terms:
-6.6 + 3.3a = 2.2(-1 + a)
-6.6 + 3.3a = (-1 * 2.2 + a * 2.2)
-6.6 + 3.3a = (-2.2 + 2.2a)

Solving
-6.6 + 3.3a = -2.2 + 2.2a

Solving for variable 'a'.

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

Add '-2.2a' to each side of the equation.
-6.6 + 3.3a + -2.2a = -2.2 + 2.2a + -2.2a

Combine like terms: 3.3a + -2.2a = 1.1a
-6.6 + 1.1a = -2.2 + 2.2a + -2.2a

Combine like terms: 2.2a + -2.2a = 0.0
-6.6 + 1.1a = -2.2 + 0.0
-6.6 + 1.1a = -2.2

Add '6.6' to each side of the equation.
-6.6 + 6.6 + 1.1a = -2.2 + 6.6

Combine like terms: -6.6 + 6.6 = 0.0
0.0 + 1.1a = -2.2 + 6.6
1.1a = -2.2 + 6.6

Combine like terms: -2.2 + 6.6 = 4.4
1.1a = 4.4

Divide each side by '1.1'.
a = 4

Simplifying
a = 4