8-(21+3)-(5-9a)=

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Solution for 8-(21+3)-(5-9a)= equation:


Simplifying
8 + -1(21 + 3) + -1(5 + -9a) = 0

Combine like terms: 21 + 3 = 24
8 + -1(24) + -1(5 + -9a) = 0

Multiply -1 * 24
8 + -24 + -1(5 + -9a) = 0
8 + -24 + (5 * -1 + -9a * -1) = 0
8 + -24 + (-5 + 9a) = 0

Combine like terms: 8 + -24 = -16
-16 + -5 + 9a = 0

Combine like terms: -16 + -5 = -21
-21 + 9a = 0

Solving
-21 + 9a = 0

Solving for variable 'a'.

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

Add '21' to each side of the equation.
-21 + 21 + 9a = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 9a = 0 + 21
9a = 0 + 21

Combine like terms: 0 + 21 = 21
9a = 21

Divide each side by '9'.
a = 2.333333333

Simplifying
a = 2.333333333

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