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Solve the system of equations.

{:[-12 x-5y=40],[12 x-11 y=88],[x=◻],[y=◻]:}

Solve the system of equations.\newline12x5y=4012x11y=88x=y= \begin{array}{l} -12 x-5 y=40 \\ 12 x-11 y=88 \\ x=\square \\ y=\square \end{array}

Full solution

Q. Solve the system of equations.\newline12x5y=4012x11y=88x=y= \begin{array}{l} -12 x-5 y=40 \\ 12 x-11 y=88 \\ x=\square \\ y=\square \end{array}
  1. Identify variable to eliminate: Identify the variable to eliminate. In this case, we can eliminate 'xx' as the coefficients are the same in both equations but with opposite signs.
  2. Identify operation to eliminate variable: Identify the operation to eliminate the variable. Here, we add the equations as the coefficients are opposite.
  3. Add equations to eliminate 'x': Add the equations to eliminate 'x'. (12x5y)+(12x11y)=40+88(-12x - 5y) + (12x - 11y) = 40 + 88\newline12x5y+12x11y=128-12x - 5y + 12x - 11y = 128\newline16y=128-16y = 128 This gives us 16y=128-16y = 128.
  4. Solve for 'y': Solve for 'y'. Dividing both sides of the equation by 16-16 gives us y=8y = -8.
  5. Substitute y=8 y = -8 into first equation to solve for 'x': Substitute y=8 y = -8 into the first equation to solve for 'x'. Substitute y=8 y = -8 in 12x5y=40 -12x - 5y = 40 . We get 12x+40=40 -12x + 40 = 40 . Subtract 40 40 from both sides, we get 12x=0 -12x = 0 . Divide by 12 -12 , we get x=0 x = 0 . This gives us x=0 x = 0 .

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