Question 496693
ela is twice as old as her friend lilia. lilia is 7 years older than raquel. ten years ago, ela was three times as old as raquel. how old is lilia now ?
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Equations:
E = 2L
L = R + 7
E-10 = 3(R-10)
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Substitute for E and R and solve for L:
2L-10 = 3(L-7-10)
2L-10 = 3L-51
L = 41
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E = 2L = 82
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R = L-7 = 34
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Cheers,
stan H.