4x-3(4x+5)=-11 equation
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The solution
Detail solution
Given the linear equation:
4*x-3*(4*x+5) = -11
Expand brackets in the left part
4*x-3*4*x-3*5 = -11
Looking for similar summands in the left part:
-15 - 8*x = -11
Move free summands (without x)
from left part to right part, we given:
$$- 8 x = 4$$
Divide both parts of the equation by -8
x = 4 / (-8)
We get the answer: x = -1/2
Sum and product of roots
[src]
$$- \frac{1}{2}$$
$$- \frac{1}{2}$$
$$- \frac{1}{2}$$
$$- \frac{1}{2}$$
$$x_{1} = - \frac{1}{2}$$