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lions [1.4K]
3 years ago
13

What is the answer20+8r=-4r+5r

Mathematics
1 answer:
Naily [24]3 years ago
5 0

Answer:

The answer is r = -20/7

Step-by-step explanation:

20 + 8r = -4r + 5 r⇒ collect like term

20 + 8r = r⇒separate different terms in different  sides

20 = r - 8r

20 = -7r⇒divide both sides by -7

r = 20/-7

r = -20/7

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