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In this lesson, we will learn how to solve a system of equations by substituting one equation into the other.
Q1:
Find the values of π and π , given the arithmetic mean between π and π is β 3 4 and the arithmetic mean between 4 π and 2 π is β 7 6 .
Q2:
Find the values of π₯ and π¦ , given the arithmetic mean between π₯ and π¦ is 77.5 and the arithmetic mean between 7 π₯ and 6 π¦ is 467.
Q3:
Solve the following system of equations:
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