(15b+3c-15a)-(5a-40c+20b)=

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Solution for (15b+3c-15a)-(5a-40c+20b)= equation:


Simplifying
(15b + 3c + -15a) + -1(5a + -40c + 20b) = 0

Reorder the terms:
(-15a + 15b + 3c) + -1(5a + -40c + 20b) = 0

Remove parenthesis around (-15a + 15b + 3c)
-15a + 15b + 3c + -1(5a + -40c + 20b) = 0

Reorder the terms:
-15a + 15b + 3c + -1(5a + 20b + -40c) = 0
-15a + 15b + 3c + (5a * -1 + 20b * -1 + -40c * -1) = 0
-15a + 15b + 3c + (-5a + -20b + 40c) = 0

Reorder the terms:
-15a + -5a + 15b + -20b + 3c + 40c = 0

Combine like terms: -15a + -5a = -20a
-20a + 15b + -20b + 3c + 40c = 0

Combine like terms: 15b + -20b = -5b
-20a + -5b + 3c + 40c = 0

Combine like terms: 3c + 40c = 43c
-20a + -5b + 43c = 0

Solving
-20a + -5b + 43c = 0

Solving for variable 'a'.

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

Add '5b' to each side of the equation.
-20a + -5b + 5b + 43c = 0 + 5b

Combine like terms: -5b + 5b = 0
-20a + 0 + 43c = 0 + 5b
-20a + 43c = 0 + 5b
Remove the zero:
-20a + 43c = 5b

Add '-43c' to each side of the equation.
-20a + 43c + -43c = 5b + -43c

Combine like terms: 43c + -43c = 0
-20a + 0 = 5b + -43c
-20a = 5b + -43c

Divide each side by '-20'.
a = -0.25b + 2.15c

Simplifying
a = -0.25b + 2.15c

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