If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-15-r=-6
We move all terms to the left:
-15-r-(-6)=0
We add all the numbers together, and all the variables
-1r-9=0
We move all terms containing r to the left, all other terms to the right
-r=9
r=9/-1
r=-9
| x+3/7=5 | | (u-4)*8=32 | | 3^0.7x=695 | | 2+3x=3+4x | | 8(t-7)=24 | | 5(2x-1)—9x=3-x | | 5(1)-y=9 | | 0,25=0,595*d | | 14=a-6.5 | | -1x^2-11x+4=0 | | 2-j=-6 | | 2/5x-9=7-1/3x | | l+8=2 | | 5=7n-9 | | 6t−18=24 | | 3-o=-1 | | 6f+12=60 | | -5+n=-59 | | 4-w=-1 | | 8-1/2y=1/4y-7 | | -19+n=4 | | u+1=-8 | | 3w-8=-14 | | n+-1=3 | | 2v-12=12 | | (2^(2x)-6)(2^(x)+8)=0 | | 1400=4.6(350-w)-4.6w | | 10x-21=-35-3x | | 5y+17=117 | | 5=(y*2)=3 | | 4=y5+2 | | 2x-15-6x+3=23-4x-3-4x |