Solve.
{j+k=3
{j−k=7
use the substitution method.
the solu...
Mathematics, 17.01.2020 00:31 alexagyemang440
Solve.
{j+k=3
{j−k=7
use the substitution method.
the solution is (5, −2).
the solution is (8, 1).
there are an infinite number of solutions.
there is no solution.
Answers: 1
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