9(a+5)=89.1

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Solution for 9(a+5)=89.1 equation:


Simplifying
9(a + 5) = 89.1

Reorder the terms:
9(5 + a) = 89.1
(5 * 9 + a * 9) = 89.1
(45 + 9a) = 89.1

Solving
45 + 9a = 89.1

Solving for variable 'a'.

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

Add '-45' to each side of the equation.
45 + -45 + 9a = 89.1 + -45

Combine like terms: 45 + -45 = 0
0 + 9a = 89.1 + -45
9a = 89.1 + -45

Combine like terms: 89.1 + -45 = 44.1
9a = 44.1

Divide each side by '9'.
a = 4.9

Simplifying
a = 4.9

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