Q. Solve the system of equations.−12x−5y=4012x−11y=88x=□y=□
Identify variable to eliminate: Identify the variable to eliminate. In this case, we can eliminate 'x' as the coefficients are the same in both equations but with opposite signs.
Identify operation to eliminate variable: Identify the operation to eliminate the variable. Here, we add the equations as the coefficients are opposite.
Add equations to eliminate 'x': Add the equations to eliminate 'x'. (−12x−5y)+(12x−11y)=40+88−12x−5y+12x−11y=128−16y=128 This gives us −16y=128.
Solve for 'y': Solve for 'y'. Dividing both sides of the equation by −16 gives us y=−8.
Substitute y=−8 into first equation to solve for 'x': Substitute y=−8 into the first equation to solve for 'x'. Substitute y=−8 in −12x−5y=40. We get −12x+40=40. Subtract 40 from both sides, we get −12x=0. Divide by −12, we get x=0. This gives us x=0.
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