tessa70
13.10.2019 •
Mathematics
Describe how you would find an object that is a about 8 inches long
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Ответ:
Solving -7y > 161 is different from solving 7y > -161 is because a change of symbol from > to > is required when solving -7y > 161 while 7y > -161 still maintains the greater than (>) symbol
The exercise is to explain how solving -7y > 161 is different from solving
7y > -161
For the inequality -7y > 161
Multiply both sides by -1 and change the inequality sign from > to <
-1(-7y) < -1(161)
7y < -161
Divide both sides by 7
7y / 7 < -161/7
y < -23
For the inequality 7y > -161
Divide both sides by 7
7y/7 > -161/7
y > -23
Solving -7y > 161 is different from solving 7y > -161 is because a change of symbol from > to > is required when solving -7y > 161 while 7y > -161 still maintains the greater than (>) symbol
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