If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-45.30-r=15
We move all terms to the left:
-45.30-r-(15)=0
We add all the numbers together, and all the variables
-1r-60.3=0
We move all terms containing r to the left, all other terms to the right
-r=60.3
r=60.3/-1
r=-60+0.3/1
| 3x+53=8x=48 | | 4444444444444444444444444444444444444444444444444444444444444444t=9999999999999999999999999999999999999999999999999999999999999999 | | 3x-11=4(2x+1) | | 3(3y+4)=49 | | 4x–10=12+5x* | | 565655t=1000000000000000000000000 | | 3(3y+40=49 | | 4.21=2.98+s4.21=2.98+s | | |2n=12=0 | | 5(3y*9)=12y | | 7600+115x=28000 | | x-4+98=100 | | 22/3n=-22 | | r+414=7 | | 180=38+x+2+x | | v-8=17 | | 88=9x+1 | | 6x-4(4x-x)=11 | | v/5+2=2 | | -1.3x=7(x+2.15) | | 2x+12=5x-27 | | u+3=18 | | 5(4x-2)+5=-2 | | 15={x}{-2}+5 | | 9+2x=6+1x | | 14+4(x-6)=30 | | 14y=56+6y | | 10=-3x-14 | | 15(2x-6)=60 | | 9=4n−11 | | -7x+43=113 | | 9x+1=-6+2x |