(-8u-9a-3)+(9u+7a)=

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Solution for (-8u-9a-3)+(9u+7a)= equation:


Simplifying
(-8u + -9a + -3) + (9u + 7a) = 0

Reorder the terms:
(-3 + -9a + -8u) + (9u + 7a) = 0

Remove parenthesis around (-3 + -9a + -8u)
-3 + -9a + -8u + (9u + 7a) = 0

Reorder the terms:
-3 + -9a + -8u + (7a + 9u) = 0

Remove parenthesis around (7a + 9u)
-3 + -9a + -8u + 7a + 9u = 0

Reorder the terms:
-3 + -9a + 7a + -8u + 9u = 0

Combine like terms: -9a + 7a = -2a
-3 + -2a + -8u + 9u = 0

Combine like terms: -8u + 9u = 1u
-3 + -2a + 1u = 0

Solving
-3 + -2a + 1u = 0

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + -2a + 3 + 1u = 0 + 3

Reorder the terms:
-3 + 3 + -2a + 1u = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -2a + 1u = 0 + 3
-2a + 1u = 0 + 3

Combine like terms: 0 + 3 = 3
-2a + 1u = 3

Add '-1u' to each side of the equation.
-2a + 1u + -1u = 3 + -1u

Combine like terms: 1u + -1u = 0
-2a + 0 = 3 + -1u
-2a = 3 + -1u

Divide each side by '-2'.
a = -1.5 + 0.5u

Simplifying
a = -1.5 + 0.5u

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