4&5 kakak?? Bantu aku

[tex] \frac{1}{3} x + \frac{2}{5} x = 22 \\ \frac{5x + 6x}{15 } = 22 \\ \frac{11}{15} x = 22 \\ x = 22 \div \frac{11}{15} \\ x = 22 \times \frac{15}{11} = 30 \: (d)[/tex]

2. di kali silang
3(x-3)=2(2x-4)
3x-9=4x-8
-x=1
x=(-1)