If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3^x+9^x=20
We move all terms to the left:
3^x+9^x-(20)=0
We move all terms containing x to the left, all other terms to the right
3^x+9^x=20
| 5x−4=30 | | 2q+6=100 | | 0.03x=8000 | | (x/(x-2)+2=3*(x/(x+2) | | (13/2)-5x=15 | | (x/(x-2)+2=3x*(x/(x+2) | | 5+3a=10 | | 4=2x^2-10x | | 10y+3=2y+8 | | 10y+3=2y+3 | | 2x-3(x+8)=-37 | | ((-40+8x))/((28x-32-6x^2))=0 | | 2a=6/9 | | 5x-8=4/x | | |x|=|1-2/3x| | | d^2-8d+20=0 | | (2x+5)(x+5)=1 | | 40+3c+4c=180 | | 2(3x -7)+4(3 x +2)=6(5 x +9)+3 | | (8x+5)(x+7)+9(2x+23)-3(x+6)=0 | | -7x-4(7-4x)=5x-40 | | 3x/4×=18 | | -12n-3=11n-3 | | 5(p+8)=-4p+13 | | 6+6x=-10 | | 15y-8=-6y+4,6 | | 2k+5(6k+5)=1+8k | | -1+5x=2 | | 11h+15=-2^2 | | 9k=3k-24 | | 11h+15=-2h^2 | | (1/3)^2x-243=0 |