12=4a+2b

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Solution for 12=4a+2b equation:


Simplifying
12 = 4a + 2b

Solving
12 = 4a + 2b

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
12 + -4a = 4a + -4a + 2b

Combine like terms: 4a + -4a = 0
12 + -4a = 0 + 2b
12 + -4a = 2b

Add '-12' to each side of the equation.
12 + -12 + -4a = -12 + 2b

Combine like terms: 12 + -12 = 0
0 + -4a = -12 + 2b
-4a = -12 + 2b

Divide each side by '-4'.
a = 3 + -0.5b

Simplifying
a = 3 + -0.5b

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