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(I'm going to solve this problem using the RESAC form).

R : x = Lilet's age; 3x = Margie's age E : x + 15 + 3x + 15 = 38 S : x + 15 + 3x + 15 = 38 4x + 30 = 38 x = 2; 3x = 6

A : Margie is 6 years old while Lilet is 2 years old.

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

Margie=M Lilet=L

M=3L

M+15+L+15=38 Add like terms M+L+30=38 Subtract both sides by 30 M+L=8 Substitute the value of L 3L+L=8 Add like terms again 4L=8 Divide both sides by 4 L=2.

Now lilet is 2 years old now substitute lilet's age to the equation M=3L M=3(2) M=6