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Solve the system of equations.

{:[-2x+5y=13],[16 x+3y=25],[x=◻],[y=◻]:}

Solve the system of equations.\newline2x+5y=1316x+3y=25x=y= \begin{array}{l} -2 x+5 y=13 \\ 16 x+3 y=25 \\ x=\square \\ y=\square \end{array}

Full solution

Q. Solve the system of equations.\newline2x+5y=1316x+3y=25x=y= \begin{array}{l} -2 x+5 y=13 \\ 16 x+3 y=25 \\ x=\square \\ y=\square \end{array}
  1. Multiply equation by 88: Multiply the first equation by 88 to make the coefficient of xx in both equations the same.\newline8(2x+5y)=8(13)8(-2x + 5y) = 8(13)\newline16x+40y=104-16x + 40y = 104
  2. Eliminate x: Add the new equation from Step 11 to the second equation to eliminate x.\newline(16x+40y)+(16x+3y)=104+25(-16x + 40y) + (16x + 3y) = 104 + 25\newline16x+40y+16x+3y=129-16x + 40y + 16x + 3y = 129\newline43y=12943y = 129
  3. Solve for y: Solve for y by dividing both sides of the equation by 4343.\newline43y43=12943\frac{43y}{43} = \frac{129}{43}\newliney=3y = 3
  4. Substitute yy into first equation: Substitute y=3y = 3 into the first original equation to solve for xx.
    2x+5(3)=13-2x + 5(3) = 13
    2x+15=13-2x + 15 = 13
    2x=1315-2x = 13 - 15
    2x=2-2x = -2
  5. Solve for x: Solve for x by dividing both sides of the equation by \(-2").\newline2x/2=2/2-2x / -2 = -2 / -2\newlinex=1x = 1

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