If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2.1^(a+2)=8.25
We move all terms to the left:
2.1^(a+2)-(8.25)=0
We add all the numbers together, and all the variables
2.1^(a+2)-8.25=0
We move all terms containing a to the left, all other terms to the right
2.1^(a+2)=8.25
| 7(3+4y)-15=73 | | 5.6x-0.12=4+1=1x | | 2(4x-12)=3x=6x=1 | | 4x+8+5=16+5 | | 5.6x-8=1.1x | | 12–7y=-4.8 | | 21=2+3x-3 | | 2x/3-5=x/6 | | 1/x-2+1/x+2=16/x²-4 | | x-(0.3x)=16.80 | | 5x(x-9)=-15 | | p^-4p-32=0 | | s*5-23=47 | | 1/x-2+1/x+2=16/x^2-4 | | 1-3x=2(x+8) | | q^-7q+7=0 | | 3t-4t+3t=8 | | 4q-8q+1.1=-45.1 | | 2x3−7x2−9x=0 | | 2y-3y=-1 | | 42÷7=k | | 6(-4+7v)=-6(2-7v) | | 1/x-2+1/x-2=16/x^2-4 | | 33-4v=7v | | 5R+16r=63 | | 13=5(1-3x)-8(5x-1) | | -(1-2x)+6(4-x)=-1 | | 11-29/x=4+6/x | | n+3+4=8 | | 6(1-4m)+8=-6m-22 | | 6x-1/5=15 | | 1.5(x+5)=0 |