If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
(-9/4)*a = 45 // - 45
(-9/4)*a-45 = 0
-9/4*a-45 = 0 // + 45
-9/4*a = 45 // : -9/4
a = 45/(-9/4)
a = -20
a = -20
| 26p=676 | | 0.15(x+60)-0.08(x-40)=8 | | 7x+6-9x=12-17x+15x-6 | | 0.05(x+40)-0.04(x-60)=4.1 | | 8r+5r-r= | | 3p-p=37 | | (x^3-4x^2+3x+2)/(x+2) | | 0.05(x+40)-0.04(x-60)=5 | | -9x-87-5x=165 | | (2x+5)+(2x+1)=4(x-1)+9 | | 8r+5r+-r= | | 4(3x-1)=3+8x-11 | | (m)/2.7=15.39 | | x^2-8x-52=-4 | | =3+8x-11 | | (b)/2.3=9.66 | | (2k)+2.3=7.7 | | (3w)+3.1=24.7 | | (4p)+5.2=(5.4p)-3.06 | | (5x)-6.1=(3.2x)-0.88 | | x/10+12=4 | | ln(x)+ln(x-3)=ln(7x) | | 6(p+5)+4(p-7)=72 | | (3c)-4.3=(3.3c)-5.77 | | -7x-4x-140=36 | | 8.7+w=5.1 | | (4w)+4.2=19 | | Y=6t^2-2t^3 | | (3r)+1.9=20.8 | | (2x^2+x-7)/(x-5) | | (3h)+5.1=31.2 | | 7/3x+5/6y-1/6x-3/5y+3 |