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nata0808 [166]
3 years ago
12

??????????????????????????

Mathematics
2 answers:
Bezzdna [24]3 years ago
5 0
Aaron is 11 and Laura is 12.
gogolik [260]3 years ago
3 0
Aaron is 1 year younger than Laura
Their combined age is 23

Let

Aaron = A
Laura = L

A = L - 1
A + L = 23

Plug in "L - 1" for "A"

(L - 1) + L = 23

Simplify, combine like terms

L - 1 + L = 23

2L - 1 = 23

isolate the L, add 1 to both sides

2L - 1 (+1) = 23 (+1)
2L = 24

Divide 2 from both sides to isolate the L

2L/2 = 24/2

L = 24/2

L = 12

Laura is 12 years old

Plug in 12 for L in one of the equations

A = L - 1
A = (12) - 1
A = 11

Aaron is 11 years old


hope this helps
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