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)
(2/3)*x-5.25 = 0
2/3*x-5.25 = 0 // + 5.25
2/3*x = 5.25 // : 2/3
x = 5.25/2/3
x = 7.87499996
x = 7.87499996
| f-1(4)=3x-4/5 | | (x+7)(3x-2)(x-10)=0 | | 3(2x+5)=48 | | -2h+14=-4 | | 84+2x+118+90+2x+68= | | 4x^4+16x^3+3x^2-36x-27=0 | | 7a+3a=24 | | -0.5x+1.31=-0.7x+9.11 | | 3n+-7=-4 | | 4-2g=14 | | 6z^8/16z^7 | | 10X+12=48+14X | | 2lnx-3=3 | | x-37=13 | | 6a^2+14a+3=0 | | 10m-870=50 | | -5f+370=-75 | | 2/3x=5.25 | | 16=4x^2-6 | | 6x^2=150x | | -1/3-9 | | M-19=2(4m+1) | | 4(2x+3)+3x=133 | | 72=8p-688 | | 10x-3=3x+2 | | 9c+5c=20 | | -5x-4(2x-3)=-92 | | 6m-11=2/9m-1 | | -1/3*y=12 | | 6(4-x)+6x=2 | | 0=4y^2-23y+33 | | 3(k+1)=18 |