a(10)=10+2(10-1)

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Solution for a(10)=10+2(10-1) equation: 


Simplifying
a(10) = 10 + 2(10 + -1)

Reorder the terms for easier multiplication:
10a = 10 + 2(10 + -1)

Combine like terms: 10 + -1 = 9
10a = 10 + 2(9)

Multiply 2 * 9
10a = 10 + 18

Combine like terms: 10 + 18 = 28
10a = 28

Solving
10a = 28

Solving for variable 'a'.

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

Divide each side by '10'.
a = 2.8

Simplifying
a = 2.8

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