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y=(1)/(3)x+5
y=2x
Consider the given system of equations. If (x,y) is the solution to the system, then what is the value of 
y+x ?

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y=13x+5y = \frac{1}{3}x+5 \newliney=2xy= 2x\newlineConsider the given system of equations. If (x,y)(x,y) is the solution to the system, then what is the value of \newliney+xy+x ? \newline

Full solution

Q. y=13x+5y = \frac{1}{3}x+5 \newliney=2xy= 2x\newlineConsider the given system of equations. If (x,y)(x,y) is the solution to the system, then what is the value of \newliney+xy+x ? \newline
  1. Write Equations: Write down the system of equations.\newlineWe have the following system of equations:\newliney=13x+5y = \frac{1}{3}x + 5\newliney=2xy = 2x
  2. Set Equal: Set the two equations equal to each other to find the value of xx.\newlineSince both expressions are equal to yy, we can set them equal to each other:\newline13x+5=2x\frac{1}{3}x + 5 = 2x
  3. Solve for x: Solve for x.\newlineTo find xx, we need to get all the xx terms on one side and the constants on the other side. We can do this by subtracting (1/3)x(1/3)x from both sides:\newline(1/3)x+5(1/3)x=2x(1/3)x(1/3)x + 5 - (1/3)x = 2x - (1/3)x\newline5=(6/3)x(1/3)x5 = (6/3)x - (1/3)x\newline5=(5/3)x5 = (5/3)x\newlineNow, multiply both sides by the reciprocal of (5/3)(5/3) to solve for xx:\newline5(3/5)=x5 * (3/5) = x\newline3=x3 = x
  4. Substitute and Find yy: Substitute the value of xx into one of the original equations to find yy. We can use either equation, but for simplicity, let's use y=2xy = 2x: y=2(3)y = 2(3) y=6y = 6
  5. Find y+xy + x: Add the values of xx and yy to find y+xy + x.\newliney+x=6+3y + x = 6 + 3\newliney+x=9y + x = 9

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