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30r + –20 = 760 r = _____
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30r + –20 = 760 r = _____

User Martin Owen
by
4.4k points

2 Answers

3 votes

Answer:

r = 26

Explanation:


30r+(-20)=760\\30r-20=760\\30r=780\\r=26

User Learner
by
4.2k points
5 votes

Answer:

r = 26

Explanation:

30r + –20 = 760

Add 20 to each side

30r + –20+20= 760 +20

30r = 780

Divide each side by 30

30r/30 = 780/30

r = 78/3

r= 26

User Kaefer
by
4.4k points
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