Mister Exam

12x+15=3x-12 equation

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Numerical solution:

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The solution

You have entered [src]
12*x + 15 = 3*x - 12
$$12 x + 15 = 3 x - 12$$
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
The graph
Sum and product of roots [src]
sum
-3
$$-3$$
=
-3
$$-3$$
product
-3
$$-3$$
=
-3
$$-3$$
-3
Rapid solution [src]
x1 = -3
$$x_{1} = -3$$
x1 = -3
Numerical answer [src]
x1 = -3.0
x1 = -3.0
The graph
12x+15=3x-12 equation