2a+12b=-21

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Solution for 2a+12b=-21 equation: 


Simplifying
2a + 12b = -21

Solving
2a + 12b = -21

Solving for variable 'a'.

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

Add '-12b' to each side of the equation.
2a + 12b + -12b = -21 + -12b

Combine like terms: 12b + -12b = 0
2a + 0 = -21 + -12b
2a = -21 + -12b

Divide each side by '2'.
a = -10.5 + -6b

Simplifying
a = -10.5 + -6b

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