If it's not what You are looking for type in the equation solver your own equation and let us solve it.
180=18r
We move all terms to the left:
180-(18r)=0
We move all terms containing r to the left, all other terms to the right
-18r=-180
r=-180/-18
r=+10
| 4/5x+9/10=13/2x+7/5 | | 5-(x+)+4x=7(x-1) | | 9x+12=2(3x+4) | | -5/6-1/9x=-102 | | 3x-9/8=-6 | | -5/2(x+6)3/2x=-9 | | n1/2=5/12 | | -4(w-4)=3w+9 | | 200x+10=50+25x+6=12 | | 4x3=80 | | -4w+8(w-3)=-32 | | 8n+30=3n | | |x^2-13x|=30 | | Y=3/5u+5 | | 9x+9=11x+9 | | 7(v+6)+3v=-28 | | 3x/7+x=30 | | 5.5+4(n+9)=-3.5 | | -6=2+4w | | 8(5x+1)-4(10+x)=-8x+12x | | Y^2-5y+11=13 | | 9|4x+2|+8=34 | | x2-10x-5=0 | | -7u+3(u-2)=26 | | 16/5b=4/5 | | -4u-14=-2(u+4) | | -2x/3+11=15 | | -12.4d=4.4 | | y^2-3.5y+1.5=0 | | 9|4x+2|=24 | | b/4-12=-5 | | -5x+1=6x+12 |