x(x-9)=3(x-15)

Simple and best practice solution for x(x-9)=3(x-15) 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 x(x-9)=3(x-15) equation: 



x(x-9)=3(x-15)

We move all terms to the left:

x(x-9)-(3(x-15))=0

We multiply parentheses

x^2-9x-(3(x-15))=0



We calculate terms in parentheses: -(3(x-15)), so:

3(x-15)

We multiply parentheses

3x-45

Back to the equation:

-(3x-45)



We get rid of parentheses

x^2-9x-3x+45=0

We add all the numbers together, and all the variables

x^2-12x+45=0

a = 1; b = -12; c = +45;
Δ = b2-4ac
Δ = -122-4·1·45
Δ = -36
Delta is less than zero, so there is no solution for the equation

See similar equations:

| 13x-7+83=180 | | 63=-14+7n | | 200m-125m+48,750=50,250-175m | | 11(y-2)+3y=2y+14 | | 0.5x=30/0.5 | | |2y+7|=−2 | | 107d=17334.4 | | 3x+9=3x-1.5 | | 45+2.5n=3.75n | | x2/3+x1/3-6=0 | | 4x−12=16 | | p=0.064 | | 12r-9-3r=-3r+27 | | -17r−-5r+-9=3 | | 0.75n=-1.75n=-18 | | 2c+4c=12 | | 12+3a=5a-10 | | 4.5g+6=1.5g+24 | | x1​ =−6 | | (x^-4)^+5(x^-4)=6 | | 3)n2+4=40 | | 35=u/5+10 | | 2v-17=1 | | 2)25v2=1 | | (x^-9)^+3(x^-9)-7=0 | | -5x+13+-12x=10 | | 3x+2x(8–4)= | | 2x-9√x+4=0 | | 9x-4=6x+9x=8 | | 96y-48=28.8 | | 6b—3=81 | | 0=4.9t^2+31t |

Equations solver categories