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)
4*x-19 = (5/2)*x // - (5/2)*x
4*x-((5/2)*x)-19 = 0
4*x+(-5/2)*x-19 = 0
3/2*x-19 = 0 // + 19
3/2*x = 19 // : 3/2
x = 19/3/2
x = 38/3
x = 38/3
| 25-4x=43 | | 3x+5=8y+2 | | 2a-3(11b-4a-17c)= | | 5a-6= | | [b-4[5c+a-2b]+2b+3c]= | | c+2a-2b+4c-a= | | 3x+2[y-[3x-(z-2y)]+z]-2y= | | 8ki+1=15 | | m+8-(-1)-2m+2= | | 4-[5y+2(6x-y)-3(x-5y-3)-7]= | | x=e^6-5 | | [5y+2(6x-y)-3(x-5y-3)-7]= | | 15-6b-3a-b= | | 4x/-3=0 | | 4x/-3+0 | | 70/3.78 | | 22/5+r=52/5 | | 175000.00+550x=220650.00 | | 35000.00+1680x=300440.00 | | x+5.7=6.1 | | (8/9)-6 | | c-7=0 | | 4j-9=1 | | X(x)=-10-24x | | 5x+15=9x-15 | | 8x+18=28+14x | | 8x+18=28 | | 4y+2=5y-6 | | 4(y+2)=14 | | 4y-2=22 | | 80000.00+209x=599.00x | | 599.00x=249783.00 |