Q. Find the solution of the system of equations.8x+2y=−24x−5y=−19
Write Equations: Write down the system of equations to be solved.We have the following system of equations:8x+2y=−24x−5y=−19Our goal is 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 coefficient of x in both equations the same.Multiplying the second equation by 2 gives us:2×(4x−5y)=2×(−19)Which simplifies to:8x−10y=−38
Eliminate x: Subtract the new equation from the first equation to eliminate x.(8x+2y)−(8x−10y)=−2−(−38)This simplifies to:8x+2y−8x+10y=−2+38Which further simplifies to:12y=36
Solve for y: Solve for y.Divide both sides of the equation by 12 to isolate y:1212y=1236y=3
Substitute and Solve for x: Substitute y=3 into one of the original equations to solve for x. We can use the second original equation for this purpose: 4x−5y=−19 Substitute y with 3: 4x−5(3)=−19 Which simplifies to: 4x−15=−19
Substitute and Solve for x: Substitute y=3 into one of the original equations to solve for x. We can use the second original equation for this purpose: 4x−5y=−19 Substitute y with 3: 4x−5(3)=−19 Which simplifies to: 4x−15=−19 Solve for x. Add 15 to both sides of the equation to isolate the term with x: x0 Which simplifies to: x1 Now, divide both sides by x2 to solve for x: x4x5