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k0ka [10]
3 years ago
5

K + j = 54 j = k - 30 How many shells does Joshua have? j=?

Mathematics
1 answer:
Rudik [331]3 years ago
8 0

Answer:

12

Step-by-step explanation:

To solve, substitute the value for k into one of the equations.

We know that k + j= 54.

To get k alone, subtract j. k = -j + 54.

Plug the value of k into the second equation. j = -j + 54 - 30.

Simplify.

j = -j + 24

2j = 24

j = 12

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