(a+2b)-(5a+4b)=

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Solution for (a+2b)-(5a+4b)= equation:


Simplifying
(a + 2b) + -1(5a + 4b) = 0

Remove parenthesis around (a + 2b)
a + 2b + -1(5a + 4b) = 0
a + 2b + (5a * -1 + 4b * -1) = 0
a + 2b + (-5a + -4b) = 0

Reorder the terms:
a + -5a + 2b + -4b = 0

Combine like terms: a + -5a = -4a
-4a + 2b + -4b = 0

Combine like terms: 2b + -4b = -2b
-4a + -2b = 0

Solving
-4a + -2b = 0

Solving for variable 'a'.

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

Add '2b' to each side of the equation.
-4a + -2b + 2b = 0 + 2b

Combine like terms: -2b + 2b = 0
-4a + 0 = 0 + 2b
-4a = 0 + 2b
Remove the zero:
-4a = 2b

Divide each side by '-4'.
a = -0.5b

Simplifying
a = -0.5b

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