(a-b)-15=16-(3a+5)

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Solution for (a-b)-15=16-(3a+5) equation:


Simplifying
(a + -1b) + -15 = 16 + -1(3a + 5)

Remove parenthesis around (a + -1b)
a + -1b + -15 = 16 + -1(3a + 5)

Reorder the terms:
-15 + a + -1b = 16 + -1(3a + 5)

Reorder the terms:
-15 + a + -1b = 16 + -1(5 + 3a)
-15 + a + -1b = 16 + (5 * -1 + 3a * -1)
-15 + a + -1b = 16 + (-5 + -3a)

Combine like terms: 16 + -5 = 11
-15 + a + -1b = 11 + -3a

Solving
-15 + a + -1b = 11 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
-15 + a + 3a + -1b = 11 + -3a + 3a

Combine like terms: a + 3a = 4a
-15 + 4a + -1b = 11 + -3a + 3a

Combine like terms: -3a + 3a = 0
-15 + 4a + -1b = 11 + 0
-15 + 4a + -1b = 11

Add '15' to each side of the equation.
-15 + 4a + 15 + -1b = 11 + 15

Reorder the terms:
-15 + 15 + 4a + -1b = 11 + 15

Combine like terms: -15 + 15 = 0
0 + 4a + -1b = 11 + 15
4a + -1b = 11 + 15

Combine like terms: 11 + 15 = 26
4a + -1b = 26

Add 'b' to each side of the equation.
4a + -1b + b = 26 + b

Combine like terms: -1b + b = 0
4a + 0 = 26 + b
4a = 26 + b

Divide each side by '4'.
a = 6.5 + 0.25b

Simplifying
a = 6.5 + 0.25b

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