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Solve the system of equations.

{:[3x-4y=8],[18 x-5y=10],[x=◻],[y=◻]:}

Solve the system of equations.\newline3x4y=818x5y=10x=y= \begin{array}{l} 3 x-4 y=8 \\ 18 x-5 y=10 \\ x=\square \\ y=\square \end{array}

Full solution

Q. Solve the system of equations.\newline3x4y=818x5y=10x=y= \begin{array}{l} 3 x-4 y=8 \\ 18 x-5 y=10 \\ x=\square \\ y=\square \end{array}
  1. Step 11: Eliminate variable 'x': Identify the variable to eliminate. We can eliminate 'x' by multiplying the first equation by 66 to match the coefficient of 'x' in the second equation.\newlineCalculation: 6×(3x4y)=6×86 \times (3x - 4y) = 6 \times 8\newlineThis gives us 18x24y=4818x - 24y = 48.
  2. Step 22: Subtract equations to eliminate 'x': Subtract the modified first equation from the second equation to eliminate 'x'.\newlineCalculation: (18x5y)(18x24y)=1048(18x - 5y) - (18x - 24y) = 10 - 48\newlineThis simplifies to 19y=3819y = -38.
  3. Step 33: Solve for 'y': Solve for 'y'.\newlineCalculation: Divide both sides of the equation by 1919 to get y=3819y = \frac{-38}{19}, which simplifies to y=2y = -2.
  4. Step 44: Substitute 'y' into first equation: Substitute y=2y = -2 into the first original equation to solve for 'x'.\newlineCalculation: 3x4(2)=83x - 4(-2) = 8\newlineThis simplifies to 3x+8=83x + 8 = 8.
  5. Step 55: Solve for 'x': Solve for 'x'.\newlineCalculation: Subtract 88 from both sides to get 3x=03x = 0, then divide by 33 to get x=0x = 0.
  6. Step 66: Write the solution as a coordinate point: Write the solution as a coordinate point.\newlineThe solution is (0,2)(0, -2).

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