12x+7<−11 OR 5x−8>40
solve for x
2 answers:
Answer:
x < -3/2 OR x > 9 3/5
Step-by-step explanation:
12x+7<−11 OR 5x−8>40
Solve the inequalities separately
12x+7<−11
Subtract 7 from each side
12x+7-7<−11 -7
12x < -18
Divide each side by 12
12x/12 < -18/12
x < -3/2
Then solve the other inequality
5x−8>40
Add 8 to each side
5x-8+8>40+8
5x>48
Divide each side by 5
5x/5 >48/5
x > 9 3/5
Put them back together with the OR in the middle
x < -3/2 OR x > 9 3/5
Answer:
x < -1.5 U x > 9.6
Step-by-step explanation:
12x + 7 < -11
x < -1.5
5x - 8 > 40
5x > 48
x > 9.6
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The sum its +2
2+2=4
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