If it's not what You are looking for type in the equation solver your own equation and let us solve it.
8(r+5)+7r=
We move all terms to the left:
8(r+5)+7r-()=0
We add all the numbers together, and all the variables
7r+8(r+5)=0
We multiply parentheses
7r+8r+40=0
We add all the numbers together, and all the variables
15r+40=0
We move all terms containing r to the left, all other terms to the right
15r=-40
r=-40/15
r=-2+2/3
| 7c/12+5c/16=15/48+c | | 1/10=k/100= | | -2t^2+20t+45=0 | | 8y-11=12 | | 12=5w-4w=15 | | (10b-2)-3(3b+3)=-6 | | x(2x+1)/3=5 | | 17x-8x=54 | | -4x+33+2x+81=90 | | M=9×3.14×s | | 6x+29+3x+124=180 | | -3+p/7=-7 | | M2-13m+36=0 | | 3/4=c+8/6 | | 1/4w=-8 | | 9t+1=19 | | 24+n/4=1024 | | 59=11^x | | -9x-22=2x | | 6x/11+1=-5 | | 8-8x2+3=0 | | (2x+9)/9=1/6 | | 19=2w-13 | | 25–2p=–7p+p–15 | | 19x=(21x-10) | | 5(x+5)-8=5(x-5) | | 4x+2=-3+2x+17 | | 3n^2+n+3=(n+1)(n+2)+1 | | (x-1)^2=20 | | X2+4y2=61 | | 999,+k=1721 | | x5-2x=3=0 |