Mister Exam

(3x+6)=81 equation

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Numerical solution:

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The solution

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3*x + 6 = 81
$$3 x + 6 = 81$$
Detail solution
Given the linear equation:
(3*x+6) = 81

Expand brackets in the left part
3*x+6 = 81

Move free summands (without x)
from left part to right part, we given:
$$3 x = 75$$
Divide both parts of the equation by 3
x = 75 / (3)

We get the answer: x = 25
The graph
Rapid solution [src]
x1 = 25
$$x_{1} = 25$$
x1 = 25
Sum and product of roots [src]
sum
25
$$25$$
=
25
$$25$$
product
25
$$25$$
=
25
$$25$$
25
Numerical answer [src]
x1 = 25.0
x1 = 25.0