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2 years ago

What is the solution to the system of equations below?2x+3y = 173x+6y= 30

Mathematics

2 answers:

brilliants [131]2 years ago

5 0

Answer:

Step-by-step explanation:

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

Marysya12 [62]2 years ago

4 0

Answer: C

Step-by-step explanation:

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What is the solution to the system of equations below?2x+3y = 173x+6y= 30​

What is the solution to the system of equations below?2x+3y = 173x+6y= 30