20-15a+b+4a-4b=

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Solution for 20-15a+b+4a-4b= equation:


Simplifying
20 + -15a + b + 4a + -4b = 0

Reorder the terms:
20 + -15a + 4a + b + -4b = 0

Combine like terms: -15a + 4a = -11a
20 + -11a + b + -4b = 0

Combine like terms: b + -4b = -3b
20 + -11a + -3b = 0

Solving
20 + -11a + -3b = 0

Solving for variable 'a'.

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

Add '-20' to each side of the equation.
20 + -11a + -20 + -3b = 0 + -20

Reorder the terms:
20 + -20 + -11a + -3b = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -11a + -3b = 0 + -20
-11a + -3b = 0 + -20

Combine like terms: 0 + -20 = -20
-11a + -3b = -20

Add '3b' to each side of the equation.
-11a + -3b + 3b = -20 + 3b

Combine like terms: -3b + 3b = 0
-11a + 0 = -20 + 3b
-11a = -20 + 3b

Divide each side by '-11'.
a = 1.818181818 + -0.2727272727b

Simplifying
a = 1.818181818 + -0.2727272727b

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