If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a-0.25a=225
We move all terms to the left:
a-0.25a-(225)=0
We add all the numbers together, and all the variables
0.75a-225=0
We move all terms containing a to the left, all other terms to the right
0.75a=225
a=225/0.75
a=300
| 16/5×y=25 | | (x/10)/((1-x+(x/10))=0.5 | | (x/10)/(1-x+(x/10))=0.5 | | a–0.25a=225 | | -3y+11=-7 | | =6(13m) | | 4(x-2)+5=37 | | 4d+90=250 | | -15a-1=74 | | 3+6a=15+3a | | 6k-4=k-4 | | -4x-15=1 | | R=3(x-10)/2 | | 13^2+10^2=c^2 | | 20580=(4x)(3x)(5x) | | -(2r+4)-(16-8r=) | | 1.5+2y=6 | | 3(x-5)=81 | | 9^2+11^2=c^2 | | 2(x)=3x-12 | | 3(m+2)=¼(12m+24) | | m-3=14* | | -2(-3+x)=5x1 | | 173+2h=999 | | 200=55(3)+c | | (5x-4)×3=18 | | 12l=69.6 | | 7(x+4)=175 | | 6x+4=3x-8+3x | | 2(1x+26)=x+39 | | 1/8n=12n= | | 2(1x+26=1x+39 |