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Algebra
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Jack's age next year will be twice Jill's age last year. Their present age will present ages total 45. How old is each now?
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... This is a duplicate...
2 independent eqns and 2 unknowns. get x and y.
@heyyygirrrl you got this?
it is actually not that easy
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here is an easier way put jack's age as \(x\) and since the total is 45 jill's age must be \(45-x\)
jack's age next year will be \(x+1\) and twice jills age last year will be \(2(44-x)\)
solve \[x+1=2(44-x)\] in a couple steps \[x+1=88-2x\] \[3x+1=88\] \[3x=87\] and finally divide by \(3\)
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