Q. Solve the following system of equations. 8x−5y=25−2x+7y=11x=□y=□
Set up equations: Step 1: Set up the equations for elimination.Given equations:1) 8x−5y=252) −2x+7y=11We aim to eliminate one variable by making the coefficients of x or y equal in both equations.
Multiply second equation: Step 2: Multiply the second equation by 4 to align the coefficients of x.Original second equation: −2x+7y=11Multiply by 4: −8x+28y=44Now, the equations are:1) 8x−5y=252) −8x+28y=44
Add equations to eliminate x: Step 3: Add the two equations to eliminate x.(8x−5y)+(−8x+28y)=25+440x+23y=69Simplify: y=2369y=3
Substitute to find x: Step 4: Substitute y=3 back into one of the original equations to find x. Using the first equation: 8x−5y=25 Substitute y: 8x−5(3)=258x−15=258x=25+158x=40x=40/8y=30