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Mandarinka [93]
3 years ago
10

chris is 3 years older than jacob. Nathan is 18 years old. two years ago the sum of all their ages was 59 years old how old is j

acob?
Mathematics
1 answer:
Lelechka [254]3 years ago
3 0

           <u>Today</u>          <u>2 years ago</u>

Chris:   x + 3            (x + 3) - 2   = x + 1

Nathan: 18               (18) - 2       = 16

Jacob:   x                (x) - 2          = x - 2

Chris + Nathan + Jacob = sum

x + 1  +     16     +   x - 2   = 59

                            2x - 15 = 59   <em>added like terms (x and x) and (1, 16, and -2)</em>

                                   2x = 74   <em>added 15 to both sides</em>

                                     x = 37    <em>divided both sides by 2</em>

Answer: Jacob is 37 yrs old



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