Diketahui 6 : ( a + 2 ) = 9 : ( 2a – 1 ), nilai a adalah…

By Admin ReiPosted on December 5, 2022

A. -4
B. -8
C. 9
D. 21

Diketahui 6 : ( a + 2 ) = 9 : ( 2a – 1 ), nilai a adalah…

$frac{6}{(a + 2)} = frac{9}{(2a - 1)} \ 6(2a - 1) = 9(a + 2) \ 12a - 6 = 9a + 18 \ 3a = 24 \ a = 8$