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3x-6*(4x+3)=10 equation

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Numerical solution:

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The solution

You have entered [src]
3*x - 6*(4*x + 3) = 10
$$3 x - 6 \left(4 x + 3\right) = 10$$
Detail solution
Given the linear equation:
3*x-6*(4*x+3) = 10

Expand brackets in the left part
3*x-6*4*x-6*3 = 10

Looking for similar summands in the left part:
-18 - 21*x = 10

Move free summands (without x)
from left part to right part, we given:
$$- 21 x = 28$$
Divide both parts of the equation by -21
x = 28 / (-21)

We get the answer: x = -4/3
The graph
Sum and product of roots [src]
sum
-4/3
$$- \frac{4}{3}$$
=
-4/3
$$- \frac{4}{3}$$
product
-4/3
$$- \frac{4}{3}$$
=
-4/3
$$- \frac{4}{3}$$
-4/3
Rapid solution [src]
x1 = -4/3
$$x_{1} = - \frac{4}{3}$$
x1 = -4/3
Numerical answer [src]
x1 = -1.33333333333333
x1 = -1.33333333333333