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Leya [2.2K]
3 years ago
7

What is R+G=20 7R+3G=9

Mathematics
1 answer:
Troyanec [42]3 years ago
4 0

Step-by-step explanation:

hope I understand your qyestion

Equation 1 : R+G=20

Equation 2 : 7R+3G=9

Multiply Equation by 3, it becomes

3R+3G=60 ...... Equation 3

Now Equation 3 minus Equation 2

-4R = 51

R = - 51/4

Sub R into Equation 1, you can find G

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Step-by-step explanation:

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Part (1):
The first line has a rate of change of 7, this means that slope of first line is 7
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Part (2): 
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7 0
3 years ago
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