Mister Exam

Other calculators

8x-4(3+5x)=8 equation

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

v

Numerical solution:

Do search numerical solution at [, ]

The solution

You have entered [src]
8*x - 4*(3 + 5*x) = 8
8x4(5x+3)=88 x - 4 \left(5 x + 3\right) = 8
Detail solution
Given the linear equation:
8*x-4*(3+5*x) = 8

Expand brackets in the left part
8*x-4*3-4*5*x = 8

Looking for similar summands in the left part:
-12 - 12*x = 8

Move free summands (without x)
from left part to right part, we given:
12x=20- 12 x = 20
Divide both parts of the equation by -12
x = 20 / (-12)

We get the answer: x = -5/3
The graph
-17.5-15.0-12.5-10.0-7.5-5.0-2.50.02.55.07.512.510.0-250250
Rapid solution [src]
x1 = -5/3
x1=53x_{1} = - \frac{5}{3}
x1 = -5/3
Sum and product of roots [src]
sum
-5/3
53- \frac{5}{3}
=
-5/3
53- \frac{5}{3}
product
-5/3
53- \frac{5}{3}
=
-5/3
53- \frac{5}{3}
-5/3
Numerical answer [src]
x1 = -1.66666666666667
x1 = -1.66666666666667