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OpenStudy (anonymous):
how many solutions does the following system have? y = -2/3 x + 3 and 2x + 3y = 9
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OpenStudy (anonymous):
The first equation has the form y = ... so you can plug that directly into the second equation. 2x + 3[...] = 9 then you will have an equation expressed in only x. Then solve for x?
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