Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Find the solution of the system of equations.

{:[4x-5y=-11],[2x+15 y=47]:}

Find the solution of the system of equations.\newline4x5yamp;=112x+15yamp;=47 \begin{aligned} 4 x-5 y & =-11 \\ 2 x+15 y & =47 \end{aligned}

Full solution

Q. Find the solution of the system of equations.\newline4x5y=112x+15y=47 \begin{aligned} 4 x-5 y & =-11 \\ 2 x+15 y & =47 \end{aligned}
  1. Identify Equations: Identify the system of equations to solve.\newlineWe have the following system of linear equations:\newline4x5y=114x - 5y = -11\newline2x+15y=472x + 15y = 47\newlineWe need to find the values of xx and yy that satisfy both equations simultaneously.
  2. Prepare for Elimination: Multiply the second equation by 22 to prepare for elimination.\newlineMultiplying the second equation by 22 gives us:\newline4x+30y=944x + 30y = 94\newlineThis will allow us to eliminate xx by subtracting this new equation from the first equation.
  3. Eliminate x: Subtract the new second equation from the first equation to eliminate x.\newline(4x5y)(4x+30y)=1194(4x - 5y) - (4x + 30y) = -11 - 94\newlineThis simplifies to:\newline35y=105-35y = -105
  4. Solve for y: Solve for y.\newlineDivide both sides of the equation by 35-35 to find the value of yy:\newliney=10535y = \frac{-105}{-35}\newliney=3y = 3
  5. Substitute and Solve for x: Substitute the value of yy into one of the original equations to solve for xx. Using the first equation 4x5y=114x - 5y = -11, we substitute y=3y = 3: 4x5(3)=114x - 5(3) = -11 4x15=114x - 15 = -11
  6. Substitute and Solve for x: Substitute the value of yy into one of the original equations to solve for xx. Using the first equation 4x5y=114x - 5y = -11, we substitute y=3y = 3: 4x5(3)=114x - 5(3) = -11 4x15=114x - 15 = -11 Solve for xx. Add 1515 to both sides of the equation to isolate xx: 4x=11+154x = -11 + 15 xx00 Divide both sides by xx11 to find the value of xx: xx33 xx44