9-3(9-1)+8=a

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Solution for 9-3(9-1)+8=a equation: 


Simplifying
9 + -3(9 + -1) + 8 = a

Combine like terms: 9 + -1 = 8
9 + -3(8) + 8 = a

Multiply -3 * 8
9 + -24 + 8 = a

Combine like terms: 9 + -24 = -15
-15 + 8 = a

Combine like terms: -15 + 8 = -7
-7 = a

Solving
-7 = a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-7 + -1a = a + -1a

Combine like terms: a + -1a = 0
-7 + -1a = 0

Add '7' to each side of the equation.
-7 + 7 + -1a = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -1a = 0 + 7
-1a = 0 + 7

Combine like terms: 0 + 7 = 7
-1a = 7

Divide each side by '-1'.
a = -7

Simplifying
a = -7

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