4a*2-81b*2=

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Solution for 4a*2-81b*2= equation:


Simplifying
4a * 2 + -81b * 2 = 0

Reorder the terms for easier multiplication:
4 * 2a + -81b * 2 = 0

Multiply 4 * 2
8a + -81b * 2 = 0

Reorder the terms for easier multiplication:
8a + -81 * 2b = 0

Multiply -81 * 2
8a + -162b = 0

Solving
8a + -162b = 0

Solving for variable 'a'.

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

Add '162b' to each side of the equation.
8a + -162b + 162b = 0 + 162b

Combine like terms: -162b + 162b = 0
8a + 0 = 0 + 162b
8a = 0 + 162b
Remove the zero:
8a = 162b

Divide each side by '8'.
a = 20.25b

Simplifying
a = 20.25b

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