yasyyas646646
08.10.2019 •
Mathematics
Jordan solved the equation −7x + 25 = 48; his work is shown below. identify the error and where it was made.
−7x + 25 = 48
step 1: −7x + 25 − 25 = 48 − 25
step 2: −7x = 23
step 3: -7x/7 = 23/7
step 4: x = 23/7
step 1: he should have added 25 to each side.
step 1: he should have divided both sides by −7.
step 3: he should have divided both sides by −7.
step 3: he should have multiplied both sides by −7.
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Ответ:
The answer is C, Step 3: He should have divided both sides by -7.
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Ответ:
ok
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