49 + 0.009 * 0.5x = 18 + 0.04 * 0.5x the whole process of solving this equation

49 + 0.009 * 0.5x = 18 + 0.04 * 0.5x the whole process of solving this equation

49+0.009*0.5X=18+0.04*0.5X
Multiply all by 1000
49000+9*0.5x=18000+4*5x
49000+4.5x=18000+20x
15.5x=31000
x=2000