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)
B = (3/4)*(21-b) // - (3/4)*(21-b)
B-((3/4)*(21-b)) = 0
(-3/4)*(21-b)+B = 0
B-3/4*(21-b) = 0
B-3/4*(21-b) = 0
B+3/4*b-63/4 = 0
B+3/4*b-63/4 = 0
x belongs to the empty set
| (n+7)(11n-2)=18n(2n+1) | | A=21-b | | 4/3(-5.25) | | f(4)=2.0x^2+7.6x^4+5.0 | | f(x)=2.0x^2+7.6x^4+5.0 | | F=5(10)+18 | | 9w+(-31)= | | 11n^2+21n-14=0 | | -9/5x=27 | | q=m*c*changeT | | F=5(4)+18 | | F=5(2)+18 | | X+5a=29+ax-6a | | 2n=-28n-3 | | V=XLT | | 2x-x+112=16x+112 | | 3/e=3/4 | | 5n-6=18 | | 2y-3+y+6=12 | | F=5(3)+11 | | F=5(5)+11 | | 2x+8x+4+x=180 | | 2q+2q-48=180 | | 3d=15d | | F=14(4)+18 | | 2q-26=q+19 | | 9/2*-7/2=47/2 | | 3j-9+13j=-1 | | 4p+64+17p+74=180 | | F=14(2)+18 | | 8.1x+30.29=-11.9x+30.13 | | -9/4=3/5x-3/8 |