Which is the best first step when solving the following system of equations?
y = 7 x + 3. y =...
Mathematics, 21.03.2020 05:42 corban13
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: 3
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