2a-3b+4c=21

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Solution for 2a-3b+4c=21 equation:


Simplifying
2a + -3b + 4c = 21

Solving
2a + -3b + 4c = 21

Solving for variable 'a'.

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

Add '3b' to each side of the equation.
2a + -3b + 3b + 4c = 21 + 3b

Combine like terms: -3b + 3b = 0
2a + 0 + 4c = 21 + 3b
2a + 4c = 21 + 3b

Add '-4c' to each side of the equation.
2a + 4c + -4c = 21 + 3b + -4c

Combine like terms: 4c + -4c = 0
2a + 0 = 21 + 3b + -4c
2a = 21 + 3b + -4c

Divide each side by '2'.
a = 10.5 + 1.5b + -2c

Simplifying
a = 10.5 + 1.5b + -2c

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