Question 1001982
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S=Sarah's current age; D=Denise's current age
.
(S+24)+(D+24)=116
S+D+48=116
S+D=68
S=68-D
.
S=4D+8
68-D=4D+8
60=5D
12=D
ANSWER: Denise is 12 years old.
.
CHECK:
S=68-D=68-12=56
Sarah is 56 years old.
.
S=4D+8
56=4(12)+8
56=48+8
56=56