If it's not what You are looking for type in the equation solver your own equation and let us solve it.
h+h=12
We move all terms to the left:
h+h-(12)=0
We add all the numbers together, and all the variables
2h-12=0
We move all terms containing h to the left, all other terms to the right
2h=12
h=12/2
h=6
| 4x+7–5=–18 | | -32=2(y-7)-5y | | 8−3u=5 | | 5=-4m+5 | | 4(y-3)=2(y=8) | | 29=v/2+16 | | x-2/3=4/1/2 | | -10+7(4x-1/2)=1/2-2x | | 8x+2=10x-1x-24 | | 6(x-1)=2x-10 | | 3/v-8=30 | | 10.8-4.9x=106.2 | | 4z+5=33 | | 3x+31=7x-5 | | 25^13-8x=(1/125)^x | | 4(3x-6)-38=-2 | | 5=2d−3 | | -1/3+x=5/6 | | 125+125+2x+2x=360 | | 2x-7+4x-41=180 | | k7=9 | | 35=y/3+13 | | 89k-5*k=k7=9 | | -4=y/3-6 | | 3(5x+4)-8=52 | | 89k-5*82k=98 | | 7x=3x=25 | | 48=2(x-4)+6 | | 82x=9 | | T=5s+3.84 | | -12+4x=-4(4x-1)+4 | | 2(x-4)+8=26 |