8.9+1.2(3a-1)=3.75

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Solution for 8.9+1.2(3a-1)=3.75 equation:


Simplifying
8.9 + 1.2(3a + -1) = 3.75

Reorder the terms:
8.9 + 1.2(-1 + 3a) = 3.75
8.9 + (-1 * 1.2 + 3a * 1.2) = 3.75
8.9 + (-1.2 + 3.6a) = 3.75

Combine like terms: 8.9 + -1.2 = 7.7
7.7 + 3.6a = 3.75

Solving
7.7 + 3.6a = 3.75

Solving for variable 'a'.

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

Add '-7.7' to each side of the equation.
7.7 + -7.7 + 3.6a = 3.75 + -7.7

Combine like terms: 7.7 + -7.7 = 0.0
0.0 + 3.6a = 3.75 + -7.7
3.6a = 3.75 + -7.7

Combine like terms: 3.75 + -7.7 = -3.95
3.6a = -3.95

Divide each side by '3.6'.
a = -1.097222222

Simplifying
a = -1.097222222

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