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batman19991
 one year ago
Breann solved the system of equations below. What mistake did she make in her work?
2x + y = 5
x − 2y = 10
y = 5 − 2x
x − 2(5 − 2x) = 10
x − 10 + 4x = 10
5x − 10 = 10
5x = 20
x = 4
2(4) + y = 5
y = −3
She should have substituted 5 + 2x
She combined like terms incorrectly, it should have been 4x instead of 5x
She subtracted 10 from both sides instead of adding 10 to both sides
She made no mistake
batman19991
 one year ago
Breann solved the system of equations below. What mistake did she make in her work? 2x + y = 5 x − 2y = 10 y = 5 − 2x x − 2(5 − 2x) = 10 x − 10 + 4x = 10 5x − 10 = 10 5x = 20 x = 4 2(4) + y = 5 y = −3 She should have substituted 5 + 2x She combined like terms incorrectly, it should have been 4x instead of 5x She subtracted 10 from both sides instead of adding 10 to both sides She made no mistake

This Question is Closed

Haseeb96
 one year ago
Best ResponseYou've already chosen the best response.2She made no mistake is the correct answer

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1No mistake I would say too

marihelenh
 one year ago
Best ResponseYou've already chosen the best response.0There is no mistake.
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