4(a+9)=68.4

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Solution for 4(a+9)=68.4 equation: 


Simplifying
4(a + 9) = 68.4

Reorder the terms:
4(9 + a) = 68.4
(9 * 4 + a * 4) = 68.4
(36 + 4a) = 68.4

Solving
36 + 4a = 68.4

Solving for variable 'a'.

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

Add '-36' to each side of the equation.
36 + -36 + 4a = 68.4 + -36

Combine like terms: 36 + -36 = 0
0 + 4a = 68.4 + -36
4a = 68.4 + -36

Combine like terms: 68.4 + -36 = 32.4
4a = 32.4

Divide each side by '4'.
a = 8.1

Simplifying
a = 8.1

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