If it's not what You are looking for type in the equation solver your own equation and let us solve it.
m in (-oo:+oo)
m/7 = 6 // - 6
m/7-6 = 0
1/7*m-6 = 0 // + 6
1/7*m = 6 // : 1/7
m = 6/1/7
m = 42
m = 42
| 13=k+1 | | 1.2x=11.4y | | 1.2x=11 | | 16=w+8 | | k/-2=6 | | -7x=77 | | w-10=-10 | | 4=m+10 | | d/-3=-4 | | 14=k+3 | | 7=d+2 | | k+3=-5 | | 3+k=-8 | | 6+a=13 | | 2+m=8 | | -2=a+1 | | k/6=-5 | | 7+8b-12=3b-8+5b | | -9+d=-13 | | 7+w=-4 | | -10+b=-2 | | 2=d+8 | | k/3=-5 | | 5x=7y | | 13=t+1 | | -13=w-6 | | t-6=-2 | | m-3=-1 | | -7b=-21 | | 18=d+9 | | 9=k-3 | | 10+x=8 |