12x+15=3x-12 equation
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The solution
Detail solution
Given the linear equation:
12*x+15 = 3*x-12
Move free summands (without x)
from left part to right part, we given:
$$12 x = 3 x - 27$$
Move the summands with the unknown x
from the right part to the left part:
$$9 x = -27$$
Divide both parts of the equation by 9
x = -27 / (9)
We get the answer: x = -3
Sum and product of roots
[src]
$$-3$$
$$-3$$
$$-3$$
$$-3$$