(3/4)*x-4=8

Simple and best practice solution for (3/4)*x-4=8 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for (3/4)*x-4=8 equation:



(3/4)*x-4=8
We move all terms to the left:
(3/4)*x-4-(8)=0
Domain of the equation: 4)*x!=0
x!=0/1
x!=0
x∈R
We add all the numbers together, and all the variables
(+3/4)*x-4-8=0
We add all the numbers together, and all the variables
(+3/4)*x-12=0
We multiply parentheses
3x^2-12=0
a = 3; b = 0; c = -12;
Δ = b2-4ac
Δ = 02-4·3·(-12)
Δ = 144
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{144}=12$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-12}{2*3}=\frac{-12}{6} =-2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+12}{2*3}=\frac{12}{6} =2 $

See similar equations:

| 3(2x-1)=2x+11 | | 5x-4+3x+7=27 | | 14u=5u+63 | | 6e+e-10=5(2e-6)-3e | | 1/2(x)(2x-5)=75 | | 3x^2-28=2x62-3x | | -1+6n=-5+4n | | 13x-8x+6=21 | | Y=7x+7/2 | | 6x-x+x-2+5+4=-11 | | 7+2(4x+3)=6x+2(x+8)-3 | | 26d=-754 | | 1-2(x)(2x-5)=75 | | 40+8p=4(-6+4p) | | 7y=5y | | 2x-5+2x+7=18 | | r+-849=100 | | q+122=825 | | x+2=3x−4 | | w-741=-106 | | -3(2-8b)=-6-b | | -3x-9=-5x+12 | | r/10-8=8 | | 0=3x^2-26x+42 | | 18y-6y=11(y+2)=y | | 7n-20=1.6 | | -16+3n=-8-8n | | r+24=995 | | 5•x=42 | | 6x-8=4x+2+2x+1 | | -12u=312 | | 8-(3v+7(=3v-1 |

Equations solver categories