Mister Exam

2x-3(2x+3)=5 equation

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Numerical solution:

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The solution

You have entered [src]
2*x - 3*(2*x + 3) = 5
$$2 x - 3 \left(2 x + 3\right) = 5$$
Detail solution
Given the linear equation:
2*x-3*(2*x+3) = 5

Expand brackets in the left part
2*x-3*2*x-3*3 = 5

Looking for similar summands in the left part:
-9 - 4*x = 5

Move free summands (without x)
from left part to right part, we given:
$$- 4 x = 14$$
Divide both parts of the equation by -4
x = 14 / (-4)

We get the answer: x = -7/2
The graph
Sum and product of roots [src]
sum
-7/2
$$- \frac{7}{2}$$
=
-7/2
$$- \frac{7}{2}$$
product
-7/2
$$- \frac{7}{2}$$
=
-7/2
$$- \frac{7}{2}$$
-7/2
Rapid solution [src]
x1 = -7/2
$$x_{1} = - \frac{7}{2}$$
x1 = -7/2
Numerical answer [src]
x1 = -3.5
x1 = -3.5
The graph
2x-3(2x+3)=5 equation