If it's not what You are looking for type in the equation solver your own equation and let us solve it.
42=2m
We move all terms to the left:
42-(2m)=0
We move all terms containing m to the left, all other terms to the right
-2m=-42
m=-42/-2
m=+21
| (10x)(12x)=110 | | 21y^2=62y+3 | | 0.25x+4=2x+8 | | -30=y+-44 | | 21y^2=62y^+3 | | 5h+7=3h+3 | | -5+5x=7x-13 | | –3(x+4)=2x+8 | | 5x+36+9x+18=180 | | 15x-117=171+7x | | n+27=-68 | | 8y=4-2y=22 | | 3x-20+5x=2x-6+3x | | 4(3x+2)=-(2x-5) | | d+77=99 | | 5w+4w=81 | | x-0.25x=2 | | 6(x=15)=6x+90 | | u+-13=79 | | p-14(-7)=-182 | | 37=z+29 | | x-2+3=3-x | | 6x+14=6x=15 | | 8x-145=-3x+141 | | 6x=3=4 | | 452.15=3.14*r | | 4x-3.5=4x=7 | | p+0.243=3.6 | | -4h=46=3h=11 | | 2x-5(x-2)=-4+5x-10 | | 2h+6=3h | | 18x-2x+16=126 |