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OpenStudy (anonymous):
James is solving the system below: -4x + 8y = 10 7x + 9y = 19 He wants to eliminate x and said that he needs to multiply the first equation by 8 and the second equation by 3. Is this correct? Justify your answer. If incorrect, describe the error.
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OpenStudy (anonymous):
Multiply both the equations as appropriate and see?
OpenStudy (anonymous):
\[8(-4x+8y=10) = ~?\] \[3(7x+9y=19) = ~ ? \]
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