If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2(-1.4+0.6d+0.4d=-8.4
We move all terms to the left:
2(-1.4+0.6d+0.4d-(-8.4)=0
| 4r+2r=-10+r | | 7(3^.5x)=42 | | 8+5^2x+3=12 | | 6(x-3)=-39+3x | | 3(x+1)+1=5(x-2) | | -2-8n=8-6n | | -10+5k=3+2+8k | | -3/4c+8=14 | | (-48)=1-(2x-9) | | 2+(1/3)x=(-1/3)x-2 | | 3+6x=x+3+5x | | 2x−3)(x+4)=0 | | 2m^-3m-2=0 | | x-(-4)=-20 | | X+21+x+21=-6 | | 11x-x=60 | | 24=7+v | | 4=n+7-2 | | 4x-4(x+9)=19 | | 4.2x=13.02 | | 13+b=22 | | -276=23(c-997 | | 2x+62=5x38 | | -276=23(c-997) | | -3n+8n=-15 | | 6r-7/10=7/4 | | 40+15w=80+10w | | y/8=3/4 | | -16=2(x-3) | | t/3-9.2=3.5 | | x+31=5(x+3) | | 8−7y=-6y |