Question 922387
{{{x+3y=-4}}} 

{{{x+4=0 }}}
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1. by substitution


*[invoke solving_linear_system_by_substitution 1, 3, -4, 1, 4, 0]


2.by elimination

*[invoke solving_linear_system_by_elimination 1, 3, -4, 1, 4, 0] 


3.by graphing

*[invoke solve_by_graphing 1, 3, -4, 1, 4, 0]