15(a-b)-9(10b-12a)=

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Solution for 15(a-b)-9(10b-12a)= equation:


Simplifying
15(a + -1b) + -9(10b + -12a) = 0
(a * 15 + -1b * 15) + -9(10b + -12a) = 0
(15a + -15b) + -9(10b + -12a) = 0

Reorder the terms:
15a + -15b + -9(-12a + 10b) = 0
15a + -15b + (-12a * -9 + 10b * -9) = 0
15a + -15b + (108a + -90b) = 0

Reorder the terms:
15a + 108a + -15b + -90b = 0

Combine like terms: 15a + 108a = 123a
123a + -15b + -90b = 0

Combine like terms: -15b + -90b = -105b
123a + -105b = 0

Solving
123a + -105b = 0

Solving for variable 'a'.

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

Add '105b' to each side of the equation.
123a + -105b + 105b = 0 + 105b

Combine like terms: -105b + 105b = 0
123a + 0 = 0 + 105b
123a = 0 + 105b
Remove the zero:
123a = 105b

Divide each side by '123'.
a = 0.8536585366b

Simplifying
a = 0.8536585366b

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