If it's not what You are looking for type in the equation solver your own equation and let us solve it.
z in (-oo:+oo)
6.7/0.3 = z/4.3 // - z/4.3
6.7/0.3-(z/4.3) = 0
6.7/0.3-0.23255814*z = 0
22.33333333-0.23255814*z = 0 // - 22.33333333
-0.23255814*z = -22.33333333 // : -0.23255814
z = -22.33333333/(-0.23255814)
z = 96.03333313
z = 96.03333313
| -10=-1z | | p/5=21 | | log[2](3x+9)=2 | | 2r=-10 | | 2.9q-4.9-4.9q=-3.0q-4.7 | | 0-(-8)= | | ((-8x-7)/(3))=11 | | ((8x-7)/(3))=11 | | x-30=-18 | | 2l+(2l+4+4)=136 | | 13n+3-12n-6=-2 | | 11x-7-6x=6x-4 | | X-2=y1/2 | | 3/7x21/25 | | 2(x+5)=32 | | 3x-8=34-4x | | 4m+17=5m+9 | | -1=-1/4a+a | | 12-(3n-12)=-3-3(n+6) | | h(t)=20-16t+32t | | x^2=9694 | | 686^(1/3) | | x^2+31x+46=0 | | 10x-2x=40 | | 1/8x-9=22 | | x+(x+10)=322 | | x+23=26 | | -2.5+6.3+(-4)= | | (63+9)/27 | | -2(x+3)+x=-x-6 | | 2y=7x+10 | | 5x+4-x=2(2x-2) |