If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x+11+8x+2=90
We move all terms to the left:
3x+11+8x+2-(90)=0
We add all the numbers together, and all the variables
11x-77=0
We move all terms containing x to the left, all other terms to the right
11x=77
x=77/11
x=7
| 2c-25=c-5 | | k1/5=3 | | 16x-18=6x+32 | | -25v-40=23-8v | | .70xX=222,100 | | 3/8=u/4 | | 3c+29=c+43= | | 7=2u-3 | | 3^(2x+1)=90 | | 3x+54=90 | | (7x-5)+(9x-7)=180 | | v/4=3/13 | | c=3c-76 | | (7x-4)^2=-9 | | 12=y/2+10 | | -5+10a=135 | | 7/13=5/v | | u/9=3/7 | | 4c+7=126 | | −5(2x−7)=2(x−2)−9 | | 12/u=11/13 | | (-3x+6)=(6x^2-5x+5) | | x-x-3=-3 | | 7s+67=109 | | 2x+70=9x+14 | | 7s=67=109 | | 7{1-8n}=32 | | 5-y/4=10 | | 10u+6=u+33 | | 1/2(x−50)=3+4x | | -5c+12=2 | | 17/13=12/u |