If it's not what You are looking for type in the equation solver your own equation and let us solve it.
d+15=30
We move all terms to the left:
d+15-(30)=0
We add all the numbers together, and all the variables
d-15=0
We move all terms containing d to the left, all other terms to the right
d=15
| 4x+3x-2=6x+x+5 | | 6(2a-8)=-108 | | x+6.67=5.45 | | 80=d/7+73 | | 12-3x+7x-2=-34 | | (3x-8)+(x+24)=180 | | 3x+4-8=19 | | -2/j+3=j+6/1 | | -1.28+3.99=x | | 3y-9= 9 | | 15n+150=255 | | 9/38=14/x | | 23/4x-5/6(x=82/5) | | Y=0.4x^2+2 | | 12=3g-42 | | 20m+3.4=7 | | 3y-9= 9 | | (2/8)+(3/4)=x/5 | | 10×+17=3x+52 | | 5r-6=38 | | 15-2y-6=7y-9 | | 7(5x+9)=9(8x | | 5x-3+3=21 | | 0.80s=6.09 | | a+(-6)=6 | | 2x^2-17x+24=-5x | | -1.42+x=6.43 | | 3x-(12/4)+2x=12 | | 8p=96p= | | x-0.8=0.4 | | 1/2p=10 | | 3.5+y=12×75 |