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Solutions To 2-variable Equations: Substitution (old)

Mathematics · Class 10

An Old Video Of Sal Checking Whether (3,-4) Is A Solution Of 5x+2y=7 By substituting X=3 And Y=-4.an Old Video Of Sal Checking Whether (3,-4) Is A Solution Of 5x+2y=7 By substituting X=3 And Y=-4.