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)
((5*x)/4)*x-12 = 0
5/4*x^2 = 12 // : 5/4
x^2 = 48/5
x^2 = 48/5 // ^ 1/2
abs(x) = (48/5)^(1/2)
x = (48/5)^(1/2) or x = -(48/5)^(1/2)
x in { (48/5)^(1/2), -(48/5)^(1/2) }
| -21-(-15)= | | p-13=21 | | -5+p=19 | | 10x^2+20x=180 | | 10s/5=20 | | 5x/4x-12 | | 21+8j=9-3j | | 52/16=x/2 | | 6r-1+6r=11k | | (X^3)+((7)(x^2))+(11x)+5=0 | | 56-16=x/2 | | 6(d+4)=4(d-6)+2d | | 4(x+2)+3x=7(x+1)+(5) | | p^2=18p-81 | | X/0.5=7.5 | | (3x/2)+4=x-1 | | 70+y+y=180 | | 35=5-x | | 61x+45=4-2 | | 4=3u-(-7)/-8 | | 5z^2+2z+5=0 | | 100000w^4-27000000w^2+10000000=0 | | .73+.46t=2.47t-.61 | | 4x-4+x=6-2+x | | 3(x+5)-9=10 | | 2.99/12 | | 5x-9=4(x-12) | | 5x+2ab=6x-3ab | | 1-0.75(c+2)=-5 | | 10x-7y=14 | | 10-4u=42 | | 10-40=43 |