If it's not what You are looking for type in the equation solver your own equation and let us solve it.
40x+x=90
We move all terms to the left:
40x+x-(90)=0
We add all the numbers together, and all the variables
41x-90=0
We move all terms containing x to the left, all other terms to the right
41x=90
x=90/41
x=2+8/41
| 9n-8n=1n+9n | | 5x2-18x-35=0 | | 0,15a=40000 | | 0,3a=24000 | | 4/x-15=11 | | 7x-34=4x-10 | | Tn=3-n | | y^2+16y+64=16 | | 6n-5n=1n+16 | | -(u-49)=-43 | | 4=u-10/2 | | x*2x*3x=75 | | 6n+5n=11n+7+9 | | m+1/2=23/5 | | -10j=-30 | | 3x+77/7=8 | | -37=t-95 | | 7^3x=23 | | -6-13x=20 | | 3k^2-30k+27=0 | | 320=10x | | r^2+12r+36=49 | | x/(.4-x)=7.3 | | 64=y^2-4y+4 | | 4x+5x+15=180 | | 2x+17=7x+18 | | 2*k-9=-2 | | 9y=70 | | 4x+30/2=5 | | y^2-4y+4=64 | | 6^(3x+2)=225 | | 8y-3=6y+7= |