If it's not what You are looking for type in the equation solver your own equation and let us solve it.
12a+6a+8+10a-4+6a+8=250
We move all terms to the left:
12a+6a+8+10a-4+6a+8-(250)=0
We add all the numbers together, and all the variables
34a-238=0
We move all terms containing a to the left, all other terms to the right
34a=238
a=238/34
a=7
| 2k/27=2/3 | | f/3+-6=2 | | 420/d=30;d=15 | | 17m+-12m=15 | | 3z+-4z+-13=-5 | | 2008.58*x=1.25 | | x5=-5 | | c/3-12=32 | | 19=c+(+12) | | 8m-7m=18 | | -4(1)+2x=6 | | 3(2x-5)=2(3x | | 2a-3+2a+3a+1=47 | | 17x=9(x+4)=3-26 | | 1-q=-4 | | c/3-20=18 | | 17=x-3(x+11) | | 3/4c-1=8 | | 15-(x-2+3x-15)=30 | | 4=39-5x | | 2x+8/2-2(3x-5)+2x=4x+2/3 | | 8h+7=6h-8 | | d/4 – 1 = 2 | | 6m-5m-1=7 | | y+13=72 | | -4(0)+2x=6 | | d/4 – 1 = 2 | | -2x-7−2x−7=x-37 | | z^2+8z-10=0 | | x+7=9-2 | | 17q+17=17 | | 2x+4=5(x+10-3(x+2) |