8.9+1.2(3a+1)=124.4

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Solution for 8.9+1.2(3a+1)=124.4 equation: 


Simplifying
8.9 + 1.2(3a + 1) = 124.4

Reorder the terms:
8.9 + 1.2(1 + 3a) = 124.4
8.9 + (1 * 1.2 + 3a * 1.2) = 124.4
8.9 + (1.2 + 3.6a) = 124.4

Combine like terms: 8.9 + 1.2 = 10.1
10.1 + 3.6a = 124.4

Solving
10.1 + 3.6a = 124.4

Solving for variable 'a'.

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

Add '-10.1' to each side of the equation.
10.1 + -10.1 + 3.6a = 124.4 + -10.1

Combine like terms: 10.1 + -10.1 = 0.0
0.0 + 3.6a = 124.4 + -10.1
3.6a = 124.4 + -10.1

Combine like terms: 124.4 + -10.1 = 114.3
3.6a = 114.3

Divide each side by '3.6'.
a = 31.75

Simplifying
a = 31.75

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