If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3^x-1+3^x+3^x+1=351
We move all terms to the left:
3^x-1+3^x+3^x+1-(351)=0
We add all the numbers together, and all the variables
3^x+3^x+3^x-351=0
We move all terms containing x to the left, all other terms to the right
3^x+3^x+3^x=351
| 5x+90=2x-6 | | 4f+1=2(2f+3)-5 | | 15=25g | | 2x-50+x+10=180 | | 2x-50+x+10=360 | | X+10+2x-50=360 | | 8x-19=-7x-7 | | 144=-12xx+5 | | -3(8c-8)+24c=-42-6 | | 8k-2/6=1 | | y=-4/15*120+24 | | 4v-5v=-5 | | x^2+12x−28=0 | | -8e-6=-8(e+4) | | a2+a2+a2=3a2 | | 6+27x=180 | | 14w-6=8 | | 6+27x= | | -6z–18=-132 | | 6+27x=360 | | 9x−4(3x−2)=4 | | −2(t+1)=5t−30 | | 0.03⁵=x | | x-8x8=17 | | 3(-5yy+4)=-8yy-2+3yy-6 | | -4t+16+2t=-6t-4 | | -2(-9m-2)-1=+27+10m | | (4y-3)=(2y-9) | | 11/13=v/6 | | -46x+8=8 | | (5+x)^2+x^2=3x+29 | | 25=9(2r-4) |