We are given a system of two linear equations with two variables, $x$ and $y$. The system is: $6x - y = 18$ $4x + 2y = 26$ We need to solve for $x$ and $y$.

AlgebraLinear EquationsSystems of EquationsElimination MethodSolving for Variables
2025/3/13

1. Problem Description

We are given a system of two linear equations with two variables, xx and yy. The system is:
6xy=186x - y = 18
4x+2y=264x + 2y = 26
We need to solve for xx and yy.

2. Solution Steps

We can use the substitution or elimination method to solve this system. Let's use the elimination method.
First, multiply the first equation by 2:
2(6xy)=2(18)2(6x - y) = 2(18)
12x2y=3612x - 2y = 36
Now we have the following system:
12x2y=3612x - 2y = 36
4x+2y=264x + 2y = 26
Add the two equations together to eliminate yy:
(12x2y)+(4x+2y)=36+26(12x - 2y) + (4x + 2y) = 36 + 26
16x=6216x = 62
Now, solve for xx:
x=6216=318x = \frac{62}{16} = \frac{31}{8}
Now that we have the value of xx, substitute it into one of the original equations to solve for yy. Let's use the first equation:
6xy=186x - y = 18
6(318)y=186(\frac{31}{8}) - y = 18
1868y=18\frac{186}{8} - y = 18
934y=18\frac{93}{4} - y = 18
y=93418y = \frac{93}{4} - 18
y=934724y = \frac{93}{4} - \frac{72}{4}
y=214y = \frac{21}{4}

3. Final Answer

x=318x = \frac{31}{8}
y=214y = \frac{21}{4}
Final Answer: x=31/8,y=21/4x = 31/8, y = 21/4