If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x+2.5x+x=100
We move all terms to the left:
3x+2.5x+x-(100)=0
We add all the numbers together, and all the variables
6.5x-100=0
We move all terms containing x to the left, all other terms to the right
6.5x=100
x=100/6.5
x=15+1/2.6
| 2y=8+4 | | (0)=2x+2 | | 7x4=16 | | x2/4–3/5=5/7 | | (3x−5)=(3x+6) | | 5x+7=-3x | | 4+8(5x+10)=444 | | (4.75+x)/2=3.5 | | (2x+5)/(3-5x)=0 | | 35/5=x/4 | | (3x-5)=(5x+1) | | -x-133=161-7x | | 18x+90=18 | | 2x+4.20=9 | | 4=52–8n | | 7.5(b-4)=10b+5 | | -x-6=x+6 | | 2x-16+4x=44 | | 3n-5=-29 | | 2x+41=7x-19 | | v-15=15-27 | | 3=-2/5x+13 | | -15=-3+x | | 36+14x=-34 | | m^2+11-5=7 | | 4x-4+x+5=13+2x-3 | | -r+4=11 | | 5(7-8p)=7(-6p)+5p | | 8a−5a=18 | | 25(10^x)=1300 | | 2(-2n+6)=-5(-3n+4)-3n | | 4(3q-2)=16q+4 |