X + y + z = 27
x = 2z
y = 3 + z
2z + 3 + z + z = 27 ; 4z = 24; z = 6 youngest
x = 12 oldest
y = 9 middle one
It should be b) from my recollection.
Ten (10) more than (+) half (

) of a number (x) is (=) eight (8) less than (-) twice (2 x ) the number (x).

x + 10 = 2x - 8 Multiply both sides by 2
x + 20 = 4x - 16 Subtract x from both sides
20 = 3x - 16 Add 16 to both sides
36 = 3x Divide both sides by 3
12 = x
Answer:
<-2
Step-by-step explanation:
i took the test