If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7.4r-8-2r=18
We move all terms to the left:
7.4r-8-2r-(18)=0
We add all the numbers together, and all the variables
5.4r-26=0
We move all terms containing r to the left, all other terms to the right
5.4r=26
r=26/5.4
r=4+3.14285714286/3.85714285714
| 161=1-10x | | 5/9x-8=-3 | | z+6-1/3=4 | | 8=-2+b | | 19=n/2 | | -7(4p-5)=35+6p | | 12x-28=4x+36 | | -x-23=3x+5 | | 6+m=22 | | -40+b=7(b-4) | | 3|2x+1|=27 | | |-4x-12|=0 | | 82=-2(7-8n | | 2(2x−11)+6=-4x+16 | | 5/6y+2=7/12-5/3y | | 8x−67=9x−75 | | 2=-6.4x+10 | | 4^x-2=2^x | | -1-2(1+6k)=-4(2k-4)+1 | | 3+10d=-63–d | | 6v^2+8=0 | | 1/2(x+3)=-3x+2 | | 21(5-a)+5a=137 | | -38=-8u+5(u-7) | | 19-7z=26 | | -x+293=176 | | 3x+7x-68=22 | | 6X+7=5(x-2)+17 | | 248=-u+198 | | (-6,1)m=6 | | 3x+5x-1300=0 | | 32=268-x |