If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r-15.9=-5.4
We move all terms to the left:
r-15.9-(-5.4)=0
We add all the numbers together, and all the variables
r-10.5=0
We move all terms containing r to the left, all other terms to the right
r=10.5
| 29=-4x+2 | | 6(x−3)+7=6x−11 | | 0.6y+0.02=0.03y-0.4 | | x+(2x+42)+(x-6)=180 | | 5.7+z=-9 | | 14(x−68)=5+3x | | 2(n+1)=7-3n | | 1/4(x−68)=5+3x | | 12+4n=8(2n-3) | | 22+2x=2(−x+4)−10 | | n^2+1=17 | | 2x+32+2x+20=180 | | 14+5c=44 | | 4(a-2)=3(a | | 8.6x+1=-8x-7 | | 4(a-2=3(a+4) | | 21-3i=12 | | 10x^2-65x-75=0 | | 75+y=90 | | 3x+2(x-3)=80 | | 10v^2-65v-75=0 | | 8-5x=4x-3(x+7) | | 6c-29=67 | | -2.5b=20.5* | | 9x-5+6x20=180 | | 8.6x+1=8x-7 | | 10+x/2=86 | | 34s−54=s8+5 | | 4(2.5m+1.25)=5(2m+1) | | 7-5x=-5-3x | | 10+x/2=8 | | 5a-9=3+1a |