Q. Find the solution of the system of equations.10x−5y5x−9y=−15=12
Write Equations: Write down the system of equations.We have the following system of equations:10x−5y=−155x−9y=12We need to find the values of x and y that satisfy both equations simultaneously.
Multiply Second Equation: Multiply the second equation by 2 to make the coefficients of x the same in both equations.Multiplying the second equation by 2 gives us:2×(5x−9y)=2×1210x−18y=24Now we have the new system of equations:10x−5y=−1510x−18y=24
Eliminate x: Subtract the first equation from the second equation to eliminate x.(10x−18y)−(10x−5y)=24−(−15)10x−18y−10x+5y=24+15−13y=39
Solve for y: Solve for y.Divide both sides of the equation by −13 to find y:y=−1339y=−3
Substitute and Solve for x: Substitute y=−3 into one of the original equations to solve for x.Let's use the first equation: 10x−5y=−1510x−5(−3)=−1510x+15=−15
Substitute and Solve for x: Substitute y=−3 into one of the original equations to solve for x. Let's use the first equation: 10x−5y=−1510x−5(−3)=−1510x+15=−15Solve for x. Subtract 15 from both sides of the equation: 10x=−15−1510x=−30 Divide both sides by 10: x=−30/10y=−30