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What is the solution to the system of equations? ) -2x+3y=13 3x+4y=6 (-2,3) C (-(7)/(2),2) (3,-2) (-11,3)

Pergunta

What is the solution to the system of equations?
 ) -2x+3y=13 3x+4y=6 
(-2,3)
C (-(7)/(2),2)
(3,-2)
(-11,3)

What is the solution to the system of equations? ) -2x+3y=13 3x+4y=6 (-2,3) C (-(7)/(2),2) (3,-2) (-11,3)

Solução

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VascoElite · Tutor por 8 anos

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To solve the system of equations, we can use the method of substitution or elimination. Let's use the elimination method.

First, we can multiply the first equation by 3 and the second equation by 2 to make the coefficients of x in both equations equal:

\begin{cases} -6x + 9y = 39\\ 6x + 8y = 12\end{cases}


Next, we can add the two equations together to eliminate x:

-6x + 9y + 6x + 8y = 39 + 12


17y = 51


Dividing both sides by 17, we get:

y = 3


Now that we have the value of y, we can substitute it back into one of the original equations to solve for x. Let's use the first equation:

-2x + 3(3) = 13


-2x + 9 = 13


Subtracting 9 from both sides, we get:

-2x = 4


Dividing both sides by -2, we get:

x = -2


Therefore, the solution to the system of equations is (-2, 3)
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