3 years ago

30r + –20 = 760 r = _____

Mathematics

2 answers:

Kamila [148]3 years ago

7 0

Answer:

r = 26

Step-by-step 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

andrey2020 [161]3 years ago

6 0

Answer:

r = <u>26</u>

Step-by-step explanation:

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

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