Q. Solve the system of equations.3x−11y=−12x−5y=−3x=□y=□
Identify Variable to Eliminate: Identify the variable to eliminate. We will eliminate ' extit{y}' by finding a common multiple for the coefficients of ' extit{y}' in both equations.
Multiply Equations by Common Multiple: Multiply the first equation by 5 and the second equation by 11 to get the coefficients of 'y' to be the same.First equation: (3x−11y)×5=−1×5 gives us 15x−55y=−5.Second equation: (2x−5y)×11=−3×11 gives us 22x−55y=−33.
Subtract Equations to Eliminate Variable: Subtract the second equation from the first equation to eliminate 'y'.(15x−55y)−(22x−55y)=−5−(−33)15x−22x=−5+33−7x=28
Solve for x: Solve for 'x'. Divide both sides of the equation by −7 to find the value of 'x'.−7−7x=−728x=−4
Substitute x into Equation to Solve for y: Substitute x=−4 into one of the original equations to solve for 'y'. We will use the first equation 3x−11y=−1. 3(−4)−11y=−1 −12−11y=−1
Isolate y Term: Add 12 to both sides of the equation to isolate the term with 'y'.−11y=−1+12−11y=11
Solve for y: Divide both sides of the equation by −11 to solve for 'y'.−11y/−11=11/−11y=−1
Write Solution as Coordinate Point: Write the solution as a coordinate point. The solution is (−4,−1).
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