Math Problem Statement

solve for x and y

Solve for X and Y in the system of equations: -6X + 5Y = 1 and 6X + 4Y = -10.

Solution

The problem involves solving the system of equations:

  1. 6X+5Y=1-6X + 5Y = 1
  2. 6X+4Y=106X + 4Y = -10

We will solve this using the substitution or elimination method.


Step 1: Eliminate XX

To eliminate XX, we add the two equations because the coefficients of XX (6-6 and 66) are opposites.

(6X+5Y)+(6X+4Y)=1+(10)(-6X + 5Y) + (6X + 4Y) = 1 + (-10)

Simplify: 5Y+4Y=95Y + 4Y = -9

9Y=99Y = -9

Solve for YY: Y=1Y = -1


Step 2: Substitute Y=1Y = -1 into one equation

Substitute Y=1Y = -1 into the first equation (6X+5Y=1-6X + 5Y = 1):

6X+5(1)=1-6X + 5(-1) = 1

Simplify: 6X5=1-6X - 5 = 1

6X=6-6X = 6

X=1X = -1


Final Answer:

X=1,Y=1X = -1, \, Y = -1


Would you like a detailed explanation of another solving method? Let me know if you have questions!

Related Questions:

  1. How would you solve this system using the substitution method?
  2. How can you verify the solution of a system of equations?
  3. What happens if a system of equations has no solution?
  4. What is the difference between consistent and inconsistent systems?
  5. Can you graphically represent this system of equations?

Tip:

When solving systems of equations, always check your solution by substituting XX and YY into both original equations!

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Math Problem Analysis

Mathematical Concepts

Algebra
Systems of Linear Equations
Substitution Method
Elimination Method

Formulas

Equation 1: -6X + 5Y = 1
Equation 2: 6X + 4Y = -10
Elimination: Add equations to remove variable X
Substitution: Solve one equation for a variable and substitute into the other equation

Theorems

Linear Equation Theorem
Consistency and Solution of Linear Systems

Suitable Grade Level

Grades 8-10