Math Problem Statement

Find X and y

Find X and Y in the system of equations: 1. 5x - 4y = 16 2. x + 4y = 32

Solution

We are tasked with solving the following system of linear equations:

  1. 5x4y=165x - 4y = 16
  2. x+4y=32x + 4y = 32

Step 1: Solve the second equation for xx

From x+4y=32x + 4y = 32: x=324yx = 32 - 4y

Step 2: Substitute x=324yx = 32 - 4y into the first equation

Substitute into 5x4y=165x - 4y = 16: 5(324y)4y=165(32 - 4y) - 4y = 16 Simplify: 16020y4y=16160 - 20y - 4y = 16 16024y=16160 - 24y = 16 24y=16160-24y = 16 - 160 24y=144-24y = -144 y=6y = 6

Step 3: Substitute y=6y = 6 into x=324yx = 32 - 4y

x=324(6)x = 32 - 4(6) x=3224x = 32 - 24 x=8x = 8

Final Solution:

x=8,  y=6x = 8, \; y = 6

Would you like me to verify or explain any step further? Let me know if you want additional practice or have related questions!


Related Questions:

  1. How do you solve systems of linear equations graphically?
  2. What is substitution, and when is it most effective in solving equations?
  3. Can you explain elimination as an alternative to solve systems of equations?
  4. How do you write a real-world problem modeled by these equations?
  5. What happens when two linear equations in a system are parallel or the same line?

Tip:

Always double-check your solution by substituting xx and yy back into the original equations.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Linear Equations
System of Equations
Substitution Method

Formulas

y = (constant)/(coefficient)
x = (expression involving y)

Theorems

Properties of Equality

Suitable Grade Level

Grades 8-10