Mister Exam

1(x-4)=2(x+1) equation

The teacher will be very surprised to see your correct solution 😉

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Numerical solution:

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The solution

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x - 4 = 2*(x + 1)
$$x - 4 = 2 \left(x + 1\right)$$
Detail solution
Given the linear equation:
1*(x-4) = 2*(x+1)

Expand brackets in the left part
1*x-1*4 = 2*(x+1)

Expand brackets in the right part
1*x-1*4 = 2*x+2*1

Move free summands (without x)
from left part to right part, we given:
$$x = 2 x + 6$$
Move the summands with the unknown x
from the right part to the left part:
$$- x = 6$$
Divide both parts of the equation by -1
x = 6 / (-1)

We get the answer: x = -6
The graph
Sum and product of roots [src]
sum
-6
$$-6$$
=
-6
$$-6$$
product
-6
$$-6$$
=
-6
$$-6$$
-6
Rapid solution [src]
x1 = -6
$$x_{1} = -6$$
x1 = -6
Numerical answer [src]
x1 = -6.0
x1 = -6.0