If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0.20x+13.5=28.5
We move all terms to the left:
0.20x+13.5-(28.5)=0
We add all the numbers together, and all the variables
0.20x-15=0
We move all terms containing x to the left, all other terms to the right
0.20x=15
x=15/0.20
x=75
| 6y+1=54 | | 120=1.2/x | | 32=x+14.5 | | 5x-21=4-3 | | 8x+7=(5x-3) | | 6y-1=54 | | -0.58x+0.38x=6.4 | | 2/3(t9)=-4 | | u/9=6/9 | | 12-5-(3+p)=-2-2p | | 5(2+y)-4=10+4(y+1) | | Y=-40x+300 | | Y=40x-300 | | 45.8+x+64.2=180 | | -0.75x+0.45x=3.9 | | x+38=4x+1 | | 2x+3x/2-15°=180 | | X/8x-6x-25=-35 | | 5y-2+3y-4=154 | | 6.25=3x-2 | | {5X-7}3x+27=180 | | {5X-7}3x+27=80 | | 10.4=2x+8.2 | | 8*x+10=90 | | 6*x-5=19 | | X²-y²=48 | | 5x-20°+3x+40=180 | | 5x-20°+3x+40=180° | | 9w-18=-10+20 | | x+3.2=14 | | 4n-2=(-10) | | 7y+10=3y+22 |