If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x+4+2x-1=90
We move all terms to the left:
3x+4+2x-1-(90)=0
We add all the numbers together, and all the variables
5x-87=0
We move all terms containing x to the left, all other terms to the right
5x=87
x=87/5
x=17+2/5
| -10x-15=83 | | -9y+45=-3(y+3) | | (4x^2+135-56x)=0 | | X/27=8/36=x63 | | 17=-7y+5(y+3) | | 6x-3=46 | | 8g2+22g+5=0 | | -9=0.4p | | 1x+16=4x-5 | | x/x+2/3=9/35 | | 4x-7=2(2x-8) | | A2+12a+35=0 | | -4p+22=14 | | 4b+9=33 | | 6−2c=4 | | 3x+5-2x+7=15 | | 1/3(c-7)=1 | | 3=7+u/2 | | f/8-25=-28 | | 53=4w+8 | | -31+-7h=-94 | | 2k-¢=18 | | 5=4g-15 | | 2x-14-5x+11=16-5x | | -3v/7=21 | | x⁴-15x²+44=0 | | g/6+18=25 | | 7n-8-2n=3(n+3)+6n+12 | | 3x*4=100 | | c+15=20 | | 0=5h^2-h-42 | | 108x=180 |