8a=4(a-9)

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Solution for 8a=4(a-9) equation: 


Simplifying
8a = 4(a + -9)

Reorder the terms:
8a = 4(-9 + a)
8a = (-9 * 4 + a * 4)
8a = (-36 + 4a)

Solving
8a = -36 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
8a + -4a = -36 + 4a + -4a

Combine like terms: 8a + -4a = 4a
4a = -36 + 4a + -4a

Combine like terms: 4a + -4a = 0
4a = -36 + 0
4a = -36

Divide each side by '4'.
a = -9

Simplifying
a = -9

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