If it's not what You are looking for type in the equation solver your own equation and let us solve it.
b in (-oo:+oo)
1.2 = (2/3)*(b-5) // - (2/3)*(b-5)
1.2-((2/3)*(b-5)) = 0
(-2/3)*(b-5)+1.2 = 0
1.2-2/3*(b-5) = 0
1.2-2/3*(b-5) = 0
4.53333333-2/3*b = 0
4.53333333-2/3*b = 0
4.53333333-2/3*b = 0 // - 4.53333333
-2/3*b = -4.53333333 // : -2/3
b = -4.53333333/(-2/3)
b = 6.79999996
b = 6.79999996
| 83=-5x+3(1+7x) | | (27x^(3/4))^(2/3) | | 67.2=6(m+2.8) | | 54=3h-6+h | | -112=-7(-5x+6) | | 70x+6=50x-29 | | 880=(x+25)11 | | 11x-15=5x-13 | | -7(x+8)=-23+4x | | 9x+8y=-30 | | -6.5(4y+6)-1.1(3y-5)= | | 4000/7.5 | | 15-7x=96 | | R(t)=400(1.02)t | | 6(1+7x)=40+8x | | 3(z-3)=5(z+3)-12 | | -8x+9y=23 | | 5-21/8 | | 6x+3=-9x-13 | | 8(x-2)=5+x | | 12-7n-14=8n+18-5n | | 2226=21(p+25) | | -6(x-4)=33-3x | | -8x+9y=-23 | | 712=4(x+16) | | 94+6= | | 6-I/6i | | 40-8x=-8x-5(x-1) | | x*3-6x*2+11x-6=0 | | x^2-3mx-4nx+2m^2+5mn-3n^2=0 | | (3x+3)+(10x-4)=90 | | 88=8x-4(6-2x) |