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a_sh-v [17]
3 years ago
13

What is the answer to this

Mathematics
1 answer:
lukranit [14]3 years ago
8 0

Answer:

B.

Step-by-step explanation:

5x + y = 3

10x + 2y = - 3

y = - 5x + 3

2y = - 10x - 3

y = - 5x + 3

y = - 5x - 3/2

These lines have the same slope, but different y-intercept, so they are parallel.

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3 years ago
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\left\{\begin{array}{ccc}2x+3y=17&\text{multiply both sides by (-2)}\\3x+6y=30\end{array}\right\\\underline{+\left\{\begin{array}{ccc}-4x-6y=-34\\3x+6y=30\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad-x=-4\qquad\text{change the signs}\\.\qquad x=4\\\\\text{put the value of x to the first equation:}\\\\2(4)+3y=17\\8+3y=17\qquad\text{subtract 8 from both sides}\\3y=9\qquad\text{divide both sides by 3}\\y=3

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