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Find the solution of the system of equations.

{:[x-5y=-24],[5x+10 y=-15]:}

Find the solution of the system of equations.\newlinex5yamp;=245x+10yamp;=15 \begin{aligned} x-5 y & =-24 \\ 5 x+10 y & =-15 \end{aligned}

Full solution

Q. Find the solution of the system of equations.\newlinex5y=245x+10y=15 \begin{aligned} x-5 y & =-24 \\ 5 x+10 y & =-15 \end{aligned}
  1. Analyze System: Analyze the system of equations to determine the best method to solve it.\newlineThe system of equations is:\newline11) x5y=24x - 5y = -24\newline22) 5x+10y=155x + 10y = -15\newlineWe can use either substitution or elimination. Since the second equation can be simplified by dividing by 55, we will use elimination after simplifying the second equation.
  2. Simplify Second Equation: Simplify the second equation by dividing all terms by 55. \newline5x+10y=155x + 10y = -15\newlineDivide by 55:\newlinex+2y=3x + 2y = -3\newlineNow we have the simplified system:\newline11) x5y=24x - 5y = -24\newline22) x+2y=3x + 2y = -3
  3. Eliminate x: Subtract the second equation from the first to eliminate x.\newline(x5y)(x+2y)=24(3)(x - 5y) - (x + 2y) = -24 - (-3)\newlineThis simplifies to:\newline7y=21-7y = -21
  4. Solve for y: Solve for y.\newlineDivide both sides by 7-7:\newliney=217y = \frac{-21}{-7}\newliney=3y = 3
  5. Substitute and Solve for x: Substitute the value of yy back into one of the original equations to solve for xx. Using the first equation: x5y=24x - 5y = -24 x5(3)=24x - 5(3) = -24 x15=24x - 15 = -24
  6. Substitute and Solve for xx: Substitute the value of yy back into one of the original equations to solve for xx. Using the first equation: x5y=24x - 5y = -24 x5(3)=24x - 5(3) = -24 x15=24x - 15 = -24 Solve for xx. Add 1515 to both sides: x=24+15x = -24 + 15 x=9x = -9