do this in elimination method or substitution medthod plsssss
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Elimination Method:
Let the number of correct answers be x
let number of wrong answers be y
3x-1y=40------->1
4x-2y=50 (simplify)--->2x-y=25---------2
subtract and x= 15
substitute x in equation 1
y=5
so correct answers 15
wrong answers 5
total questions 20
Let the number of correct answers be x
let number of wrong answers be y
3x-1y=40------->1
4x-2y=50 (simplify)--->2x-y=25---------2
subtract and x= 15
substitute x in equation 1
y=5
so correct answers 15
wrong answers 5
total questions 20
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