If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4+.85x=6.40
We simplify the equation to the form, which is simple to understand
4+.85x=6.40
We move all terms containing x to the left and all other terms to the right.
+ 0.85x=+6.4-4
We simplify left and right side of the equation.
+ 0.85x=+2.4
We divide both sides of the equation by 0.85 to get x.
x=2.8235294117647
| 9x+4y=21 | | -43+43=-18p-10p | | 7x+1x=18.5x | | 16+12=x-3 | | a-2-6=-10-a | | 20+(110-y)+(140-x)=180 | | 3x-y+2z=-2 | | 2138.9994=3.14*r^2 | | -9(V+2)+2V+5=5V+8 | | M=(h-w-8) | | X+7=3x+10 | | -4y+6=12y-4 | | -14=0.7x-0.9 | | 22n-8+5n^2=0 | | 16=c+5 | | (140-x)+x+40=180 | | xy=1400 | | 2x+7=111 | | 16y=2y+8 | | x+(x-140)=140 | | c=2(3.14)7.5 | | 2w^2=-6 | | 65=56 | | -182=-17x-9x | | 1.3x+5=2x-4 | | 6x=15.36 | | 6-9x=5x-9x-9 | | 4+[2-3x]=11 | | 7y=54y-72 | | 2b^2+112-30b=0 | | 13W+15W-5+3=-5W+3-5 | | -r-16r=119 |