Tolong jawab no 2 donggggg Cepat ya

a. 24. 16
----- = -----
(x+7) 10

16 (x+7) = 240
16x + 112 = 240
16x = 240 - 112
x = 128 : 16 = 8

b,c,d kaya gitu seterusnya ya:) fighting!

a.
[tex] \frac{24}{x + 7} = \frac{16}{10} \\ 16(x + 7) = 24 \times 10 \\ 16x + 112 = 240 \\ 16x = 240 - 112 \\ 16x = 128 \\ x = \frac{128}{16} \\ x = 8[/tex]
b.
[tex] \frac{5x - 2}{72} = \frac{18}{27} \\ 27(5x - 2) = 18 \times 27 \\ 135x - 54 = 1296 \\ 135x = 1296 + 54 \\ 135x = 1350 \\ x = \frac{1350}{135} \\ x = 10[/tex]
c.
[tex] \frac{8}{10} = \frac{y + 15}{25} \\ 10(y + 15) = 8 \times 25 \\ 10y + 150 = 200 \\ 10y = 200 - 150 \\ 10y = 50 \\ y = \frac{50}{10} \\ y = 5[/tex]
d.
[tex] \frac{21}{28} = \frac{24}{ 3y - 4} \\ 21(3y - 4) = 24 \times 28 \\ 63y - 84 = 672 \\ 63y = 672 + 84 \\ 63y = 756 \\y = \frac{756}{63} = 12 [/tex]