4+(-2b)+1-4a-2b=13

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Solution for 4+(-2b)+1-4a-2b=13 equation: 


Simplifying
4 + (-2b) + 1 + -4a + -2b = 13

Reorder the terms:
4 + 1 + -4a + (-2b) + -2b = 13

Combine like terms: 4 + 1 = 5
5 + -4a + (-2b) + -2b = 13

Combine like terms: (-2b) + -2b = -4b
5 + -4a + -4b = 13

Solving
5 + -4a + -4b = 13

Solving for variable 'a'.

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

Add '-5' to each side of the equation.
5 + -4a + -5 + -4b = 13 + -5

Reorder the terms:
5 + -5 + -4a + -4b = 13 + -5

Combine like terms: 5 + -5 = 0
0 + -4a + -4b = 13 + -5
-4a + -4b = 13 + -5

Combine like terms: 13 + -5 = 8
-4a + -4b = 8

Add '4b' to each side of the equation.
-4a + -4b + 4b = 8 + 4b

Combine like terms: -4b + 4b = 0
-4a + 0 = 8 + 4b
-4a = 8 + 4b

Divide each side by '-4'.
a = -2 + -1b

Simplifying
a = -2 + -1b

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