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Mathematics 20 Online
OpenStudy (anonymous):

WILL MEDAL! Equation M: y = x + 4 Equation P: y = 3x + 6 Which of the following is a step that can be used to find the solution to the set of equations? A. x = 3x + 6 B. x + 4 = 3x + 6 C. x + 6 = 3x + 4 D. x = 3x

Mehek (mehek14):

substitute the first equation into the second the first equation is y = x + 4 so put x + 4 instead of y in the second equation x + 4 = 3x + 6

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