Q. Find the solution of the system of equations.−2x−9y8x−8y=19=−32
Simplify Second Equation: Let's start by simplifying the second equation by dividing all terms by 8 to make the coefficient of x equal to 1.Divide 8x by 8 to get x.Divide −8y by 8 to get −y.Divide −32 by 8 to get x1.The simplified second equation is x2.
Solve for x: Now, let's solve the simplified second equation for x.x=y−4We will use this expression for x in the first equation to solve for y.
Substitute x into First Equation: Substitute x=y−4 into the first equation −2x−9y=19. −2(y−4)−9y=19 Distribute −2 to both y and −4. −2y+8−9y=19 Combine like terms. −11y+8=19
Solve for y: Now, let's solve for y.Subtract 8 from both sides of the equation.−11y+8−8=19−8−11y=11Divide both sides by −11.y=−1111y=−1
Substitute y into x Expression: With the value of y found, we can now substitute y=−1 into the expression for x we found in Step 2.x=y−4x=−1−4x=−5