alaj6878
09.07.2019 •
Mathematics
Will give brainliest kisha and rae are asked to solve −5x − 14 = 2x + 7. identify where one of them made an error. kisha rae −5x − 14 = 2x + 7 −5x − 14 − 2x = 2x + 7 − 2x −7x − 14 = 7 −7x − 14 + 14 = 7 + 14 −7x = 21 negative 7x over negative 7 equals 21 over negative 7 x = − 3 −5x − 14 = 2x + 7 −5x − 14 + 5x = 2x + 7 + 5x −14 = 7x + 7 −14 + 7 = 7x + 7 + 7 −7 = 7x negative 7 over 7 equals 7x over 7 x = − 1 rae made the error when she added 7 rae made the error when she added 5x kisha made the error when she subtracted 2x kisha made the error when she divided by −7
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Ответ:
The answer is A.
Rae made the error when she added 7.
The equation should be: -14 - 7 = 7x + 7 - 7
Ответ:
all real numbers
Step-by-step explanation:
I took the test and edge and got it right