If it's not what You are looking for type in the equation solver your own equation and let us solve it.
10+2a=39
We move all terms to the left:
10+2a-(39)=0
We add all the numbers together, and all the variables
2a-29=0
We move all terms containing a to the left, all other terms to the right
2a=29
a=29/2
a=14+1/2
| 6x–20=4x–10 | | __x22=88 | | 4y-15=-3 | | 15-3e=0 | | y2+2(3+y2)=3y2-2y | | 9(6x-6=-81 | | 8(8x-3)=-8 | | 7w-2/3=18 | | -2(x+21)-3(x-14)=-5x | | 3(5x+5=15 | | 8l=40 | | 16=3+x/2 | | 12x-37=59 | | x²+9x=14 | | 3(2x-6)=2(5x÷3) | | 71w=142 | | 1.5=x22 | | 3.9x=0,7x | | (D2+5D+4)(2D2+5D+2)y=0 | | d=722d/3+2 | | 600-4x=200 | | 600-4x=100 | | X-4/x=2 | | -8n-8=64 | | 5−3(5x+2)=4(7−3x)+1 | | 11y-7,9+25y+19,6-4,7y+6,6=1-11y | | 11x-4=x+3 | | 3h–7=11 | | 4x –20 = –28 | | 9x×4=3x | | 5−6x−x2=0 | | -6x-19=47 |