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There is no "formula" to solve this kind of equation; you simply have to put get the desired variable on the left side, and everything else to the right side.
a = 3b - 2c
Switch around:
3b - 2c = a
To get rid of the "2c", add "2c" to each side:
3b = a + 2c
To get rid of the 3, divide both sides by 3:
b = (a + 2c) / 3.
If: a = 2b+c Then: a-c = 2b And: b = (a-c)/2
A = h/2*(a + b) So 2A/h = a + b and therefore, a = 2A/h - b
x=b-a
y=b+x+x^2 This is a quadratic equation. The graph is a parabola. The quadratic equation formula or factoring can be used to solve this.
(a + b + c) 3 = a3 + b3+ c3+ 3a2b + 3a2c + 3ab2 + 3ac2 + 3b2c + 3bc2 + 6abc