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)
(4/7)*m = (2/7)*(2*m+1) // - (2/7)*(2*m+1)
(4/7)*m-((2/7)*(2*m+1)) = 0
(-2/7)*(2*m+1)+(4/7)*m = 0
(4*m)/7-2/7*(2*m+1) = 0
(-2/7*7*(2*m+1))/7+(4*m)/7 = 0
4*m-2/7*7*(2*m+1) = 0
-2 = 0
-2/7 = 0
-2/7 = 0 // * 7
-2 = 0
m belongs to the empty set
| 35(a+5)=70(a-5) | | 6(b-7)=8b-42 | | 3(8-3t)=5(-2u-2) | | 42+17/1/7 | | 6x+4(x-10)=70 | | 5a+(a-1)=11 | | 2x+27+2x-11=180 | | 6(4z+2)=3(8+4) | | 4d/-2=2d+4/-5 | | -255=-15a | | 2/3(8t-4)=5 | | 12-3x=3x | | -4.5w=-8/1/3 | | 3x+(x+3)=46 | | 5x+3x-76x=45 | | w/4.9=5 | | 5(a-1)+4(a+2)=12 | | 5x+3x-76x= | | 50=9d-4 | | 4x-1=2x-1+2x | | 3c-1/2(-14)=2 | | 5.2n+0.8n+47=377 | | 3(3p+1)=p | | 9b-5=0 | | 2.5x=-13/16 | | 3(x+6)-7=20 | | 8-3k=3k+12 | | h=s3/2 | | y^3-18y+8=0 | | 5=-5/3+x | | 8x+38=180 | | 2x/6=-3/6 |