If it's not what You are looking for type in the equation solver your own equation and let us solve it.
18d+2d-18d=12
We move all terms to the left:
18d+2d-18d-(12)=0
We add all the numbers together, and all the variables
2d-12=0
We move all terms containing d to the left, all other terms to the right
2d=12
d=12/2
d=6
| 16q-15q=14 | | 4-12x=-19 | | 3x-27+15=29 | | 16q−15q=14 | | 19a+-6a+-14a+-15a+11a=-15 | | 4z-3z+3z-3z=4 | | -11b+12b=1 | | 9d+2d-10d-d+2d=18 | | 1-x/5=0 | | 8b+-12b+13b+18b-19b=16 | | 17k-15k-k=17 | | 4j+j-3j-2j+j=5 | | 4j+j−3j−2j+j=5 | | 7r-r+r-5r=12 | | 3(t+11)=99 | | 15-1/6z=1/3z | | 9s+18=45 | | g-81/3=6 | | 5-9x=-17 | | 17=4n-7 | | X+2x+x-5=45 | | 9(s-88)=90 | | 6(u-87)=12 | | 3(w+7)=2(w-2) | | F(X)=√(2x-7) | | (x+3)/(-3x+5)=0 | | x3+3x=41 | | (X-8)x+7)=0 | | 11u+6=17 | | 7=10-x/4 | | 6x2−17x−3=0 | | (x-4)^2+(x-4)(x+2)=0 |