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)
(2/5)*x = 2800000 // - 2800000
(2/5)*x-2800000 = 0
2/5*x-2800000 = 0 // + 2800000
2/5*x = 2800000 // : 2/5
x = 2800000/2/5
x = 7000000
x = 7000000
| 9(5x+6)=324 | | 23-5y=-7 | | 7(7x+17)=560 | | 15f+9=(5f+3) | | 4/3w-2/3=7/8w-5/6 | | 6/10=10/x | | A=z+zwh | | 7y-6=29+7y | | 5(6x-9)=315 | | 7x-2(8x+1)=16 | | 5(6x-6)=120 | | -7+6(-5z+1)=3(-5z-8)-2 | | (3x+4)-x+2= | | 2[x-(3x+2x)+9]=3x-8 | | 6(x+8)-7x=-(2x-4) | | A=TN | | 7g(-3h+1)=0 | | 78r=3510 | | z^2-10x+24=0 | | zsquared+35=12z-1 | | 1/2y-1/3(y-1)=3y | | 5xln(7x)= | | 7a-(2a+5)= | | 3/8y-3=6 | | 3y+2=2y-5 | | .08x+0.12(260-x)=0.48x | | 9x-5x+4=x-3+7 | | -4.2=15.96 | | 1/2y-1/3(y-1)=1/3 | | 4/1x3/8 | | -4.2x=1596 | | 6(8x-3)=318 |