If it's not what You are looking for type in the equation solver your own equation and let us solve it.
30x=5x+400
We move all terms to the left:
30x-(5x+400)=0
We get rid of parentheses
30x-5x-400=0
We add all the numbers together, and all the variables
25x-400=0
We move all terms containing x to the left, all other terms to the right
25x=400
x=400/25
x=16
| 10+0.5x=1/2x-10 | | 4t2=t+4 | | 100-20x=4320 | | 100+20x=4320 | | 4(x+5)=4x+16 | | 0=500+6x-x^2 | | 180-x=2x-123 | | 5b-b=3b+3 | | 215n+12=20 | | 180-x=123-2x | | 3.7x-1.85=17.39 | | 14=8+2t | | -42+16x=7+9x | | 31a+9=32+2 | | 2b+b+(b/2)-2=180 | | 83=1y-17 | | 2r+15=23 | | 35=s/2.38 | | 1a-15=22 | | 39375+150x-5x^2=0 | | 12000+2160x=120000 | | -(-5+3x)=85 | | 4x+3x-7+10=25 | | 4k+5+6k+10=65 | | K-2=3k+1 | | 7t+2t=t=t-6 | | 6k+10+4k+5=65 | | 6x+3x+7=4+9x-3 | | 12000-2160x=120000 | | -7c+30=35-2c | | 7x-4x=3x-8 | | -17=-3m+7 |