Mathematics, 16.02.2021 21:00 jacobc7698
Which is the best first step when solving the following system of equations?
y = 7 x + 3. y = 9 x.
Multiply the first equation by –7.
Substitute 9x for y in the first equation.
Multiply the second equation by Negative 3.
Substitute 7x for y in the second equation.
Answers: 1
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Which is the best first step when solving the following system of equations?
y = 7 x + 3. y = 9 x.<...
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