Which is the best first step when solving the following system of equations?
y= 7x + 3
y= 9x<...
Mathematics, 10.12.2020 21:40 sunny1211
Which is the best first step when solving the following system of equations?
y= 7x + 3
y= 9x
1. Multiply the first equation by 7
2. Substitute 9x for y in the first equation
3. Multiply the second equation by -3
4. Substitute 7x for y in the second equation
Answers: 3
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