If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-40=10r
We move all terms to the left:
-40-(10r)=0
We move all terms containing r to the left, all other terms to the right
-10r=40
r=40/-10
r=-4
| -19+6n=3-8(3n-1) | | 9+p/3=7 | | m-(3/2)-(7/4)m=-1/8 | | 6-3q=18 | | 2+3.5s+20=74 | | x+2/3+1/1/2=-1/2 | | 5(2x-3)=8x | | x+2/3+1/1/2=1/2 | | -99=-11(12n+6)-11(-6-9n) | | 2.8+10m=7.96 | | 1.3x=12 | | 3(x-4)+9=5x-2(-1+x) | | 10x=93 | | 2+3.5s+10=37 | | -8(r-7)=4(4r+2) | | -12=6(x-8) | | y-1.3=18.7 | | 3(x-4)+9=5x-2(-1+x | | -4-n=14 | | 101=-5(10r+1)-12(-9r-4) | | 2(2x+8(=40 | | −p+60=(−10)+10,000 | | 147=-7(-3+x) | | -7(w+3)=56 | | .5t+7=6 | | 4x-1.5=16 | | 2(y-6)=48+8y | | 7n+3=7n+5 | | 2x=176-x | | 2-8m-8=10 | | 27=x/2-7 | | d+-774=-226 |