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)
750/300 = x // - x
750/300-x = 0
5/2-x = 0 // - 5/2
-x = -5/2 // * -1
x = 5/2
x = 5/2
| 5x+0.4=30.4 | | 8x+2=5x-10 | | (u-3)*9=27 | | -18=-7x+5-6 | | 9x-6=45 | | 18(-7/7)= | | 0.5(8x-14)=-13 | | 26x+10=30 | | 3k=3z-p | | 3c+3+2c+5=48 | | [3x-10]=5 | | 9y+13=103 | | (9x+5)(4x+7)= | | 11x-13y=9 | | 10+5*a=25 | | 4[4-x]=16 | | x/.15=5413.4 | | 8x-18=3x+22 | | 110x^2+96x-68=0 | | x/.15=y | | 8x-18=3x+22 | | 110x^2+96x-68=0 | | 8x-18=3x+22 | | p-5-15p=150-11 | | d/2-9=14 | | 2x+85+x+60+x-25=180 | | 12x+3=16x-3 | | (x^3-2x)(4x^2+3)= | | 2(x)+2=16x-12 | | 7[n]+13=34 | | 2(3x)+2x=320 | | 5/6;6y |