Answers

2016-01-18T12:19:15+08:00
X=jerry
y=jennifer
x=y+7
3+x=2y

3+y+7=2y
3+7=2y-y
10=y
y=10

x=y+7
x=10+7
x=17
0
according to your solution... y = 10 which is Jennifer's age; x = 17 which is Jerry's age.. in three years, Jennifer will be 13 while Jerry will be 20 .... 2(13) = 20 ?? 2(Jennifer's age) = (Jerry's age) ..
sorry ..dapat may +3 rin sa kabila 3+x=2y+3 ..
so ..x=y+7 ..3+y+7=2y+3 ...y=7 and x=14
therefore, their present ages are 4 (jennifer) and 11 (Jerry) ☺
yeah ...sorry