If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-m+7=15
We move all terms to the left:
-m+7-(15)=0
We add all the numbers together, and all the variables
-1m-8=0
We move all terms containing m to the left, all other terms to the right
-m=8
m=8/-1
m=-8
| 7x+1-5x+2=6x+3-x+2 | | {4u-12}=-4 | | 6b+5-b-6-7b=3b-2-b+21 | | 3x+2+4x+4=2x+16 | | 8x^2-63x+90=0 | | 7/4(x-1)=7/8 | | 5(2+5x)=10-8x | | x+0.8x=10 | | 18+6*y-25+2= 19 | | 7x=-14x | | 6x+10=−20 | | 47+16x=136 | | -7a(3a+10)=0 | | 1/9-2b=9 | | 7-2/5(8r-6)+2r=32 | | 47+16x=137 | | -w/9-1=0 | | 72+10x=119 | | (5×x)+5×2=5×(x+2) | | 10(x-9)-7=26x-273 | | 25x+0.1x=3.8 | | 72+10x=113 | | |2x-9|-36=1 | | 0.5x+30=12 | | x/75=4/30 | | (4x+5)=(6x-15) | | 1/2x+30=12 | | -4x-35+2(2x+22)=0 | | a/7=11 | | 10+f=-8 | | 20x^2+9x+2=0 | | x/5-9/20=x/4 |