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OpenStudy (anonymous):
Solve the system. What is the value of x? y = 3x and 4x + 2y = 30 A. 3 B. -3 C. 9 D. -9
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Parth (parthkohli):
We already have that y is 3x, so we may substitute like this: \( \color{Black}{\Rightarrow 4x + 2(3x) = 30}\)
Parth (parthkohli):
Just find the value of x.
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