We are given a system of two linear equations with two variables $x$ and $y$: $5x - 3y = 15$ $2x + y = -5$ We need to solve for $x$ and $y$.

AlgebraLinear EquationsSystems of EquationsSubstitution MethodSolving Equations
2025/3/12

1. Problem Description

We are given a system of two linear equations with two variables xx and yy:
5x3y=155x - 3y = 15
2x+y=52x + y = -5
We need to solve for xx and yy.

2. Solution Steps

We can use the substitution or elimination method to solve this system of equations. Let's use the substitution method. From the second equation, we can express yy in terms of xx:
y=52xy = -5 - 2x
Now, substitute this expression for yy into the first equation:
5x3(52x)=155x - 3(-5 - 2x) = 15
5x+15+6x=155x + 15 + 6x = 15
11x+15=1511x + 15 = 15
11x=011x = 0
x=0x = 0
Now, substitute x=0x = 0 back into the equation for yy:
y=52(0)y = -5 - 2(0)
y=5y = -5
Therefore, the solution to the system of equations is x=0x = 0 and y=5y = -5.

3. Final Answer

x=0,y=5x = 0, y = -5

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