If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x+2x+3x=351
We move all terms to the left:
x+2x+3x-(351)=0
We add all the numbers together, and all the variables
6x-351=0
We move all terms containing x to the left, all other terms to the right
6x=351
x=351/6
x=58+1/2
| 57+z=97* | | -19+97=-4p-9p | | 19j-3j-j-11j-3j+1=15 | | k+5=(-3)* | | 7+-3t=2.43+t | | x/1=27/36 | | w+4=(-1)* | | 17=y+8* | | 27/36=x/1 | | p+5=15* | | x÷3=x-6 | | 7w-4w-3w+w=6 | | 27/36=1/x | | 4(x+2)=-8(x-1) | | 2x+8;x=9 | | 4(3a+5)-a=24 | | (4x–5)^2=49 | | 38h-18h-14h=36 | | 9−m=7 | | 9x+2=5x+1 | | 10=7x-6+5x | | 7n-2n-5n+2n=20 | | H(t)=4.9t^2+26.95+11 | | 132.50+15s=192.49 | | 11x+x-11x-x+x=18 | | H(t)=4.9t^2+26.95t+11 | | H(t)=-4.9t^2+26.95t+11 | | 7t-16t+8t+3t-t+-14=-1 | | 19.95+1.5t-19.18=5.1t+19.91 | | 5h-7.5=2.5 | | 21^x^+3=14 | | 10x+10=61 |