If it's not what You are looking for type in the equation solver your own equation and let us solve it.
q in (-oo:+oo)
q/2-9 = -7 // + 7
q/2-9+7 = 0
1/2*q-2 = 0 // + 2
1/2*q = 2 // : 1/2
q = 2/1/2
q = 4
q = 4
| 2x-4+6x=28 | | 32/9,5/9 | | b/3-1=1 | | 13x+5=19x-7 | | (e/-9)-5=-11 | | h/2-1=2 | | 48x+8y-56=0 | | 5(x-1)+7=21 | | 3(2/3z-1=5 | | -5-3=18+2x | | x-3/5=6/5 | | 7x-13=-5x+71 | | (3a+50)=(6a-4) | | 5b-40(3)= | | -2(2t+4)=-32 | | -10(s+5)=-11 | | 3x^2+9=12-8x | | 5k^2-125+k=0 | | 2x1x2x24/4 | | 3(2l+3)=39 | | 5+6(v-3)=2+v | | 3(x-1)=3x-3-2x | | -11-5x=3(x-1) | | 6b-53=3b-11 | | 4c-c+2-3=2 | | x-25=4(2x+3)-2 | | x-25=4(2+3)-2 | | (2x-7)(x-7)=16 | | 2b-24=180 | | 2x^2-21x+33=0 | | x+(x*0.1)=y | | 3b-10=8 |