Latest exam Aptitude Question SOLUTION: I need help using the echelon method to solve each of two equations in two unknowns. 2x + 7y = -8 -2x + 3y = -12

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Previous Question: 5m-2(m-5)=17 Next Question: if someone wanted an average grade of 90 and they base the grade on 4 tests and the first 3 scores were 84 93 and 88 what would the last test score grade have to be to get a total average of 90? 85 88 92 or 95

(#M40124647) EXAM Numerical Ability question Keep an EYE

I need help using the echelon method to solve each of two equations in two unknowns.

2x + 7y = -8
-2x + 3y = -12: Asked In exam (9 years ago); Unsolved; Is this Puzzle helpful? (0) (0) Submit Your Solution

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Previous Question: 5m-2(m-5)=17 Next Question: if someone wanted an average grade of 90 and they base the grade on 4 tests and the first 3 scores were 84 93 and 88 what would the last test score grade have to be to get a total average of 90? 85 88 92 or 95

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