A comparison of two numbers or variables is a proportion
Answer:
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Step-by-step explanation:
Answer:
Is there a picture included?
Step-by-step explanation:
Standard form is ax + by = c y = 2/7x - 4 y + 4 = 2/7x 4 = 2/7x - y Multiply everything by 7 to get rid of fraction. 28 = 2x - 7y Answer: 2x - 7y = 28
Answer:
See explanation
Step-by-step explanation:
Assuming your system is:
Then make x the subject in the first equation to get:
Put this equation into the second equation to get:
This means that: