Question

13 supa 4 - 2X = 2,25+ X , X = ?

Answer 1

13-8x=2,25+x
13-2,25=x+8x
10,75=9x
x=1,19(4)

Answer 2

13/4-2x=225/100+x
aducem la acelasi numitor:
13*25/100-200x/100=225/100+100x/100
325/100-200x/100=225/100+100x/100
300x=100
x=100/300
x=1/3