If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x+87=90
We move all terms to the left:
3x+87-(90)=0
We add all the numbers together, and all the variables
3x-3=0
We move all terms containing x to the left, all other terms to the right
3x=3
x=3/3
x=1
| -.66(x-3)-x=8 | | 3x+49=133 | | 8j2–13j–6=0 | | (3/4)x-6=9 | | 6=4x=(6x=9)/3 | | 15x4/7=x1/15 | | (x/5)+(3x-584)=120 | | 155-y=270 | | 144=-v+217 | | 27x15=96 | | 4(x+3)=2(x+20) | | -20=-4+2x | | Xx1.55=90 | | 9*10y-7.8=31.1 | | (Y-3)^=y^-9 | | 9u-5=-10u | | x/8=3=2 | | 3x+36-8x÷3=5 | | -4.1*16n=-33.7 | | -/4x-1/3x=5/12 | | x/4+9=10 | | 3f=-9+4f | | -7x+14=-4(x-2) | | 4y-10/3=2 | | 16x+3=28 | | -7(w-3)=-3w+49 | | H(t)=-5t^2+40t+25 | | x(–3x+5)=7x–10 | | 18n+2=54.3 | | 6n-32=3+6n-n^2 | | 15x=53 | | 2x+1+x-31=180 |