If it's not what You are looking for type in the equation solver your own equation and let us solve it.
s in (-oo:+oo)
s+(21/2)*s+20*s = 48 // - 48
s+(21/2)*s+20*s-48 = 0
63/2*s-48 = 0 // + 48
63/2*s = 48 // : 63/2
s = 48/63/2
s = 32/21
s = 32/21
| sin*8x+sin*2x=0 | | 12+3m=2(m+4) | | 3(3+6x)-3=24 | | 4(d-5)= | | s+21/2s+20=48 | | 11-4x+3=14-4x | | 1000=m+50(3)+m+a | | 2v+3=22 | | 24-6a=-6(-7a-4) | | 47=6y+5 | | -10c+6+10c= | | 3/10x+1=10 | | 10+6x=20-2x | | -6a-8=7(6a-8) | | 12(x-3)=8(x-3) | | 3a=630+210+160 | | 5-6x= | | 11+3p=8(-7p-6) | | 3/10+1=x | | 190=-5(-5x-3) | | 3/2=x+3/5 | | 8(4a-3)+8a=136 | | 3a=630/3-50 | | 2t+3=1 | | 7.79=2(3.14)r | | -7(4+5v)=-133 | | -2(x-3)=-3(x-2) | | 3a=660 | | 3(1-6x)=-141 | | -15=m-10 | | 1000=e/3+a-50 | | V=own |