If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
(7/15)*(x-((2/5)*x)) = 0
(7/15)*(x+(-2/5)*x) = 0
7/15*3/5*x = 0
( 3/5*x )
3/5*x = 0 // : 3/5
x = 0
( 7/15 )
7/15 = 0
x belongs to the empty set
x = 0
| 36x-228=3x^2-12x-9x+36 | | 7.5+6(1-2.5c)=28.5 | | t/12=12/72 | | 2x(3x-6)+5x=0 | | -16t^2+144t=288 | | 3m^3(2m^4-6m-5)= | | a^2-8000*a=0 | | 19Y=8X+1 | | 1/u-3=3 | | -t^2-9t=18 | | 5t^2+20t=60 | | -t^2-9t-288=0 | | 2.30x+2.55x+420=10957 | | 8ln(3x)=16 | | 12y^2+60y+75= | | -25+x=-29 | | 4x-73.5=-42.6 | | 140a^2-4a-24= | | a-5(-1/6)=3 | | 6/x-2=7/4 | | 20+3t=21 | | X^10+X^2+X^3+X^10+X^2+X^3=0 | | X^10+X^2+X^3+10=0 | | X^10+X^2+X^3=0 | | p(b+d)=-a+c | | p=(b+d)-a+c | | .5x(5x)=160 | | Z=Z+1 | | a+bp=c-dp | | 5/6÷9/20 | | 4x+-5+6x=6 | | a^5+3a^3+2a-3=a-1 |