We are given a system of two linear equations with two variables, $x$ and $y$. We are asked to solve this system using the elimination method. The system of equations is: $x + 2y = 6$ $x - 2y = 2$

AlgebraLinear EquationsSystems of EquationsElimination MethodSolving Equations
2025/3/28

1. Problem Description

We are given a system of two linear equations with two variables, xx and yy. We are asked to solve this system using the elimination method. The system of equations is:
x+2y=6x + 2y = 6
x2y=2x - 2y = 2

2. Solution Steps

We will use the elimination method to solve this system of equations.
Notice that the yy terms in the two equations have opposite signs. We can add the two equations to eliminate the yy variable.
Add the two equations:
(x+2y)+(x2y)=6+2(x + 2y) + (x - 2y) = 6 + 2
x+x+2y2y=8x + x + 2y - 2y = 8
2x=82x = 8
Divide both sides by 2 to solve for xx:
2x2=82\frac{2x}{2} = \frac{8}{2}
x=4x = 4
Now that we have found the value of xx, we can substitute it into either of the original equations to solve for yy. Let's use the first equation:
x+2y=6x + 2y = 6
Substitute x=4x = 4:
4+2y=64 + 2y = 6
Subtract 4 from both sides:
2y=642y = 6 - 4
2y=22y = 2
Divide both sides by 2 to solve for yy:
2y2=22\frac{2y}{2} = \frac{2}{2}
y=1y = 1
So the solution to the system of equations is x=4x = 4 and y=1y = 1.

3. Final Answer

The solution to the system of equations is (4,1)(4, 1).

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