Answer:
3. [tex]\displaystyle y = \frac{2}{5}x + 1\frac{2}{5}[/tex]
2. [tex]\displaystyle y = -\frac{5}{7}x + 2[/tex]
1. [tex]\displaystyle y = -2x + 4[/tex]
Step-by-step explanation:
3. 2x - 5y = −7
- 2x - 2x
__________
[tex]\displaystyle \frac{-5y}{-5} = \frac{-2x - 7}{-5} \\ \\ y = \frac{2}{5}x + 1\frac{2}{5}[/tex]
2. 5x + 7y = 14
- 5x - 5x
__________
[tex]\displaystyle \frac{7y}{7} = \frac{-5x + 14}{7} \\ \\ y = -\frac{5}{7}x + 2[/tex]
1. 6x + 3y = 12
- 6x - 6x
__________
[tex]\displaystyle \frac{3y}{3} = \frac{-6x + 12}{3} \\ \\ y = -2x + 4[/tex]
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