Math Problem Statement

Solve the following simultaneous equations: 3y - x = 8 and 5y - 2x = 6.

Solution

Let's solve the simultaneous equations provided:

  1. 3yx=83y - x = 8
  2. 5y2x=65y - 2x = 6

We can solve these equations using substitution or elimination. I’ll use substitution for this case.

Step 1: Solve one equation for xx

From the first equation, solve for xx: x=3y8x = 3y - 8

Step 2: Substitute into the second equation

Now substitute x=3y8x = 3y - 8 into the second equation 5y2x=65y - 2x = 6: 5y2(3y8)=65y - 2(3y - 8) = 6 Simplify the equation: 5y6y+16=65y - 6y + 16 = 6 y+16=6-y + 16 = 6 y=616-y = 6 - 16 y=10-y = -10 y=10y = 10

Step 3: Substitute y=10y = 10 into the first equation

Now, substitute y=10y = 10 into the equation x=3y8x = 3y - 8: x=3(10)8x = 3(10) - 8 x=308x = 30 - 8 x=22x = 22

Final Answer:

The solution to the system of equations is: x=22,y=10x = 22, \quad y = 10

Would you like a detailed explanation of any step, or have further questions?

Here are some additional related questions:

  1. What are the steps to solve a system of linear equations using the elimination method?
  2. How can you check the solution to a system of equations?
  3. How do you solve a system of three linear equations with three variables?
  4. What is the graphical interpretation of solving simultaneous linear equations?
  5. How do you solve non-linear simultaneous equations?

Tip: Always double-check your substituted values to make sure the solution satisfies both original equations.

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Math Problem Analysis

Mathematical Concepts

Algebra
Simultaneous Equations
Substitution Method

Formulas

x = 3y - 8

Theorems

Basic Linear Equation Properties

Suitable Grade Level

Grades 8-10