We are given a system of two linear equations with two variables, $x$ and $y$. The equations are: $2x + 5y = 24$ $4x + 3y = 20$ We are asked to solve for $x$ and $y$ using the elimination method.

AlgebraLinear EquationsSystems of EquationsElimination MethodSolving Equations
2025/7/14

1. Problem Description

We are given a system of two linear equations with two variables, xx and yy. The equations are:
2x+5y=242x + 5y = 24
4x+3y=204x + 3y = 20
We are asked to solve for xx and yy using the elimination method.

2. Solution Steps

We can eliminate xx by multiplying the first equation by 2-2 and then adding the result to the second equation.
Multiply the first equation by 2-2:
2(2x+5y)=2(24)-2(2x + 5y) = -2(24)
4x10y=48-4x - 10y = -48
Now add this to the second equation:
(4x10y)+(4x+3y)=48+20(-4x - 10y) + (4x + 3y) = -48 + 20
4x10y+4x+3y=28-4x - 10y + 4x + 3y = -28
7y=28-7y = -28
Divide both sides by 7-7:
y=287y = \frac{-28}{-7}
y=4y = 4
Now substitute y=4y = 4 into the first equation to solve for xx:
2x+5(4)=242x + 5(4) = 24
2x+20=242x + 20 = 24
2x=24202x = 24 - 20
2x=42x = 4
x=42x = \frac{4}{2}
x=2x = 2

3. Final Answer

The solution to the system of equations is x=2x = 2 and y=4y = 4.