If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0.05+0.10(400-x)=0.45x
We move all terms to the left:
0.05+0.10(400-x)-(0.45x)=0
We add all the numbers together, and all the variables
0.10(-1x+400)-(+0.45x)+0.05=0
We multiply parentheses
-0.1x-(+0.45x)+40+0.05=0
We get rid of parentheses
-0.1x-0.45x+40+0.05=0
We add all the numbers together, and all the variables
-0.55x+40.05=0
We move all terms containing x to the left, all other terms to the right
-0.55x=-40.05
x=-40.05/-0.55
x=72+0.45/0.55
| 1/2+n+5=9 | | 71=9k—8 | | 8n=2(3n-1) | | 3x+7+5x-9=-8 | | -5=3-2/4x | | 1/2n+5=19 | | (4x-25)=(6x-51)=(x+14) | | 5x+3=-1x+27 | | c+(c/3)+(c/2)+16=49 | | 2b=7b-24 | | -15=6+7w | | -7x+3(-3x-3)=-185 | | [k+(-2)+18=30 | | x+(-18)=-25 | | 98/50=x | | -7(2x-7)+7=-14+56 | | 3.16=x+9 | | 1000+300x=2500+150x | | y−4=30, | | (15x+30)/(-5x-10)=x | | x+1+x+1=3x-4 | | 4(2t+2)−6(t−1)=6−t | | -35=-16x^2+35 | | 35=(0.75)t+(0.5)(0.50)t^2 | | 1+2x=2x+25 | | 4.9x^2-2x-50=0 | | c+(1/3c)+(1/2c)+16=49 | | 4-4x=7x-17 | | (12x-22)=(10x-6)=(7x+18) | | (3x-4)=3x-5 | | 16/15=2b-13/5 | | 5/4(40)+7=m |