Question
Solve the system of two linear equations. −3x−4y=−23 3x−5y=5 (1 point) Responses (−5,−2) left parenthesis negative 5 comma negative 2 right parenthesis (5,−2) left parenthesis 5 comma negative 2 right parenthesis (5, 2) left parenthesis 5 comma 2 right parenthesis (−5, 2)
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Answered by
GPT 3.5
To solve the system of equations, we can use the method of elimination. Multiply the first equation by 3 and the second equation by -3 to eliminate the x term:
-9x - 12y = -69
-9x + 15y = -15
Now, subtract the first equation from the second equation:
27y = 54
Divide both sides of the equation by 27 to solve for y:
y = 2
Substitute this value of y back into the first equation to solve for x:
-3x - 4(2) = -23
-3x - 8 = -23
-3x = -15
x = 5
Therefore, the solution to the system of equations is (5, 2).
-9x - 12y = -69
-9x + 15y = -15
Now, subtract the first equation from the second equation:
27y = 54
Divide both sides of the equation by 27 to solve for y:
y = 2
Substitute this value of y back into the first equation to solve for x:
-3x - 4(2) = -23
-3x - 8 = -23
-3x = -15
x = 5
Therefore, the solution to the system of equations is (5, 2).
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