If it's not what You are looking for type in the equation solver your own equation and let us solve it.
13a+11=8a+28
We move all terms to the left:
13a+11-(8a+28)=0
We get rid of parentheses
13a-8a-28+11=0
We add all the numbers together, and all the variables
5a-17=0
We move all terms containing a to the left, all other terms to the right
5a=17
a=17/5
a=3+2/5
| x^2=-2.89 | | 0.8x+51.2=7.2× | | (x+9)=−45 | | 1/(110000/(1+(50-1)*0.044225)/3600)=x | | 6x+258=360 | | 1x+224=360 | | 4x+208=360 | | 6x+186=360 | | 9x+243=360 | | -2(3x-1)=4x+2 | | 18-18k+4k=0 | | 18-18k+4√k=0 | | 64(3^-0.25x)=1/9x^2 | | 1-4n=12 | | (4a+3)-(2a+1)=6 | | F(x)=2.5x-1 | | 5x+2/3x-4=1/8 | | 3(2x-6)+9=2(2x-3)+4x-23 | | p4=81 | | 2n÷2=5 | | -4x+14=2x | | 8=12x-3 | | -5-7x=-3-4x | | xxx-x=17 | | 13(z-4)-3(z-9)-5(2+z)=0 | | 0.2x^2-4x+8=0 | | 42+x=3(x+8) | | X+x/2+3x=118 | | x+2x+x/3=118 | | 10f-3f=14 | | 3x2-31x+36=0 | | |8x+3|-2x=7 |