If it's not what You are looking for type in the equation solver your own equation and let us solve it.
X+X+13=49
We move all terms to the left:
X+X+13-(49)=0
We add all the numbers together, and all the variables
2X-36=0
We move all terms containing X to the left, all other terms to the right
2X=36
X=36/2
X=18
| -3k-2=-14 | | 3x+x=5040 | | 3t^2+8t+10=0 | | 6p-36-47=7 | | 4x=(8x-5) | | X+x/5=7500 | | (X-1)+5x=7500 | | (9√6x)=180 | | n^2+2/3n=-1/9 | | 5s-4s=1 | | 7x+(-9)=47 | | 4.15-1.34x=4x-3.059 | | √x2−x−2=x−2 | | 2h+h-2h+2=12 | | 300x+x2=400000 | | 9x-8=(-3x)+31 | | 8p-4p+5=13 | | 8n+n-5n+n=15 | | 3(2x+1)-4(4x+7)+21=226 | | k/5-1/2=3/2 | | -18=8×-9-5x | | 4x+(-12)=12 | | 15-(7p+8p)=15-2 | | 17u+4u-16u=20 | | 2c(8)=6 | | 3b+3b+b-7b+3b=15 | | x58+25=0 | | x•272=107 | | 15u-10u+8u-3u=14 | | 6x+5.5=5x+5.3 | | 3/9y-10=-7 | | 4-(-h)=66 |