1. At which ordered pair on a graph will the following system of a linear equations intersect?
1 answer:
Answer:
D. (-7, -9)
Step-by-step explanation:
<u>Equation 1</u> : -5x + 5y = -10
<u>Equation 2</u> : -3x + 2y = 3
<u>Multiply Equation 1 by 2 and Equation 2 by 5.</u>
- -10x + 10y = -20 [Equation 3]
- -15x + 10y = 15 [Equation 4]
<u>Subtract Equation 4 from Equation 3.</u>
- -10x + 10y + 15x - 10y = -20 - 15
- 5x = -35
- x = -7
- -3(-7) + 2y = 3
- 2y = -18
- y = -9
<u>Solution</u>
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