2 answers:
Answer:
-40
Step-by-step explanation:
cuz 2 times -40=-80 and -80+30 equals -50
2x+30=-50
2x=-50-30
2x=-80
x=-80/2
<h2>x= - 40</h2>
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Answer:
3y +9 = perimeter
Step-by-step explanation:
Answer: 8-a^3
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