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)
7/10 = x/30 // - x/30
7/10-(x/30) = 0
7/10-1/30*x = 0 // - 7/10
-1/30*x = -7/10 // : -1/30
x = -7/10/(-1/30)
x = 21
x = 21
| -6r-5r=-22 | | 9x-7-4x= | | 3x-61=0 | | -2n-8n=20 | | H=2x-3 | | 2(-3)-7+2= | | 7/4y=29/8 | | -10=4-8x-6 | | 0.5(16+8x)=9x-7 | | -2(6y-2)-y=-3(y-4) | | 42j+18-10j=-28 | | 17m/13 | | 17m/13m | | 7=-5+8a-4a | | 7e^5x=10e^6x | | .0795*X=50000 | | -5(1=2k)-8(1/2-1/4) | | 623/343 | | 21=3c-3(6-2c) | | 2+5-17n+9n= | | 3x+9-7x=10x+2-3x | | -0.10(11)+0.20x=0.05(x-16) | | m-0.5=5(w) | | 10q+5=5(2q+4) | | 3(1-6x)-x=-130 | | 19/15-2/3=x | | 2(3w-1)=6w-2 | | 15x+4=2x+7 | | -13m=337 | | -14+6x+4=2(-5+3x) | | X*.0795=50000 | | d=(1/2)gp |