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{:[24-6y=2x],[6(y-2)=3+x]:}
Consider the system of equations. If 
(x,y) is the solution to the system, then what is the value of 
y+x ?

246y=2x 24-6 y=2 x \newline6(y2)=3+x 6(y-2)=3+x \newlineConsider the system of equations. If (x,y) (x, y) is the solution to the system, then what is the value of y+x y+x ?

Full solution

Q. 246y=2x 24-6 y=2 x \newline6(y2)=3+x 6(y-2)=3+x \newlineConsider the system of equations. If (x,y) (x, y) is the solution to the system, then what is the value of y+x y+x ?
  1. Solve for x: Solve the first equation for x.\newlineWe have 246y=2x24 - 6y = 2x. To solve for x, we divide both sides by 22.\newlinex=246y2x = \frac{24 - 6y}{2}\newlinex=123yx = 12 - 3y
  2. Substitute xx into second equation: Substitute the expression for xx into the second equation.\newlineThe second equation is 6(y2)=3+x6(y - 2) = 3 + x. We substitute xx with 123y12 - 3y.\newline6(y2)=3+(123y)6(y - 2) = 3 + (12 - 3y)
  3. Simplify and solve for y: Simplify and solve for y.\newlineExpanding the left side, we get:\newline6y12=3+123y6y - 12 = 3 + 12 - 3y\newlineCombining like terms, we get:\newline6y+3y=3+12+126y + 3y = 3 + 12 + 12\newline9y=279y = 27\newlineDividing both sides by 99, we get:\newliney=279y = \frac{27}{9}\newliney=3y = 3
  4. Substitute yy into xx expression: Substitute the value of yy into the expression for xx.\newlineWe have x=123yx = 12 - 3y. Now that we know y=3y = 3, we substitute it in.\newlinex=123(3)x = 12 - 3(3)\newlinex=129x = 12 - 9\newlinex=3x = 3
  5. Find y+xy + x: Add the values of xx and yy to find y+xy + x.y+x=3+3y + x = 3 + 3y+x=6y + x = 6