Question

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

Answer 1

12

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