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Solve these pairs of simultaneous equations: \newline2x+y=12x + y = 1 and \newliney=x5y = x - 5

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Q. Solve these pairs of simultaneous equations: \newline2x+y=12x + y = 1 and \newliney=x5y = x - 5
  1. Express yy in terms of xx: Step Title: Express yy from the first equation\newlineConcise Step Description: Express yy in terms of xx using the first equation.\newlineStep Calculation: From the equation 2x+y=12x + y = 1, we can isolate yy by subtracting 2x2x from both sides, giving us y=12xy = 1 - 2x.\newlineStep Output: y=12xy = 1 - 2x
  2. Substitute yy in equation: Step Title: Substitute yy in the second equation\newlineConcise Step Description: Substitute the expression for yy from the first equation into the second equation.\newlineStep Calculation: Replace yy in the second equation y=x5y = x - 5 with the expression from the first equation, giving us 12x=x51 - 2x = x - 5.\newlineStep Output: 12x=x51 - 2x = x - 5
  3. Solve for x: Step Title: Solve for x\newlineConcise Step Description: Solve the resulting equation for x.\newlineStep Calculation: Add 2x2x to both sides and add 55 to both sides to get 1+5=x+2x1 + 5 = x + 2x, which simplifies to 6=3x6 = 3x. Divide both sides by 33 to find x=2x = 2.\newlineStep Output: x=2x = 2
  4. Solve for yy: Step Title: Solve for yy using the value of xx Concise Step Description: Substitute the value of xx back into the expression for yy to find the value of yy. Step Calculation: Substitute x=2x = 2 into y=12xy = 1 - 2x to get y=12(2)y = 1 - 2(2), which simplifies to y=14y = 1 - 4, giving us yy00. Step Output: yy00