Q. Solve the system of equations.11x+4y=−467x−4y=10x=□y=□
Identify variable to eliminate: Identify the variable to eliminate. In this case, we can eliminate 'y' as the coefficients are the same in magnitude but opposite in sign.
Identify operation to eliminate variable: Identify the operation to eliminate the variable. Here, we add the equations as the coefficients of 'y' are opposite.
Add equations to eliminate variable: Add the equations to eliminate y. (11x+4y)+(7x−4y)=−46+1011x+4y+7x−4y=−3618x=−36
Solve for x: Solve for 'x'. Dividing both sides of the equation by 18 gives us x=−1836.x=−2
Substitute x into equation to solve for y: Substitute x=−2 into one of the original equations to solve for 'y'. Let's use the first equation: 11x+4y=−46. 11(−2)+4y=−46 −22+4y=−46
Solve for y: Solve for y. Add 22 to both sides of the equation to isolate the term with y.4y=−46+224y=−24Divide both sides by 4 to find y.y=−24/4y=−6
Write the solution as a coordinate pair: Write the solution as a coordinate pair.The solution is (−2,−6).
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