a-b=8-(9+a)

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


Simplifying
a + -1b = 8 + -1(9 + a)
a + -1b = 8 + (9 * -1 + a * -1)
a + -1b = 8 + (-9 + -1a)

Combine like terms: 8 + -9 = -1
a + -1b = -1 + -1a

Solving
a + -1b = -1 + -1a

Solving for variable 'a'.

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

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

Combine like terms: a + a = 2a
2a + -1b = -1 + -1a + a

Combine like terms: -1a + a = 0
2a + -1b = -1 + 0
2a + -1b = -1

Add 'b' to each side of the equation.
2a + -1b + b = -1 + b

Combine like terms: -1b + b = 0
2a + 0 = -1 + b
2a = -1 + b

Divide each side by '2'.
a = -0.5 + 0.5b

Simplifying
a = -0.5 + 0.5b

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