100a+400b=3000

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Solution for 100a+400b=3000 equation: 


Simplifying
100a + 400b = 3000

Solving
100a + 400b = 3000

Solving for variable 'a'.

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

Add '-400b' to each side of the equation.
100a + 400b + -400b = 3000 + -400b

Combine like terms: 400b + -400b = 0
100a + 0 = 3000 + -400b
100a = 3000 + -400b

Divide each side by '100'.
a = 30 + -4b

Simplifying
a = 30 + -4b

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