If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x+x-45=90
We move all terms to the left:
2x+x-45-(90)=0
We add all the numbers together, and all the variables
3x-135=0
We move all terms containing x to the left, all other terms to the right
3x=135
x=135/3
x=45
| 8b-5÷3=9 | | 10.5=2.2x+1.3x | | 6x–5x=19 | | 5/8*p=9/4-3/8 | | 6j–5j=19 | | x2-1/5x-11/5=0 | | 24=-8(w+8) | | w-76/7=2 | | x+2x+5x+2=26 | | 2n+0.1=1n+0.6 | | x2-5.3x=-8.6 | | 12+5x-3=29 | | 2y-6.3=y+11 | | 7n^2+37n+36=0 | | 8n+4=2n | | x2-2.4x=2.2 | | 15=x/6+7 | | √6x-2=8 | | 3+2x+5x=24 | | y=-5/3-1 | | √6x-√2=8 | | -3.2x+9.1=4.62 | | =15+x67 | | 9+24/n=15 | | x^2-10x=25+144 | | 2x2-7x=12 | | -2=9x2-5x+2 | | 3(y-8)=6 | | 6x-2(-3x-5=154 | | 4u^2-u=0 | | -2(x)=9x2-5x+2 | | 3(n-1)=2n+9 |