4b=2(a-9)

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Solution for 4b=2(a-9) equation: 


Simplifying
4b = 2(a + -9)

Reorder the terms:
4b = 2(-9 + a)
4b = (-9 * 2 + a * 2)
4b = (-18 + 2a)

Solving
4b = -18 + 2a

Solving for variable 'b'.

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

Divide each side by '4'.
b = -4.5 + 0.5a

Simplifying
b = -4.5 + 0.5a

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