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Solve the system of equations.

{:[-5y+8x=-18],[5y+2x=58],[x=◻],[y=◻]:}

Solve the system of equations.\newline5y+8x=185y+2x=58x=y= \begin{array}{l} -5 y+8 x=-18 \\ 5 y+2 x=58 \\ x=\square \\ y=\square \end{array}

Full solution

Q. Solve the system of equations.\newline5y+8x=185y+2x=58x=y= \begin{array}{l} -5 y+8 x=-18 \\ 5 y+2 x=58 \\ x=\square \\ y=\square \end{array}
  1. Write Equations: Write down the system of equations.\newlineWe have the following system of equations:\newline5y+8x=18-5y + 8x = -18\newline5y+2x=585y + 2x = 58\newlineWe need to find the values of xx and yy that satisfy both equations.
  2. Add Equations: Add the two equations together to eliminate yy.\newlineBy adding the two equations, we get:\newline(5y+8x)+(5y+2x)=18+58(-5y + 8x) + (5y + 2x) = -18 + 58\newlineThis simplifies to:\newline8x+2x=408x + 2x = 40
  3. Combine & Solve for x: Combine like terms and solve for x.\newline8x+2x=408x + 2x = 40\newline10x=4010x = 40\newlineNow, divide both sides by 1010 to solve for x:\newlinex=4010x = \frac{40}{10}\newlinex=4x = 4
  4. Substitute & Solve for y: Substitute the value of xx into one of the original equations to solve for yy. We can use the second equation for this purpose: 5y+2x=585y + 2x = 58 Substitute x=4x = 4 into the equation: 5y+2(4)=585y + 2(4) = 58 5y+8=585y + 8 = 58
  5. Final Solution: Subtract 88 from both sides to isolate the term with yy. \newline5y+88=5885y + 8 - 8 = 58 - 8\newline5y=505y = 50\newlineNow, divide both sides by 55 to solve for yy:\newliney=505y = \frac{50}{5}\newliney=10y = 10

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