At Westonci.ca, we connect you with the best answers from a community of experienced and knowledgeable individuals. Get expert answers to your questions quickly and accurately from our dedicated community of professionals. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

Solve the system of linear equations.

Wally has a total of 212 stamps. He has 34 more domestic stamps than foreign stamps. Let [tex][tex]$x$[/tex][/tex] represent the number of domestic stamps and [tex][tex]$y$[/tex][/tex] represent the number of foreign stamps.

This system of equations models the given information:
[tex]\[
\begin{array}{l}
x - y = 34 \\
x + y = 212
\end{array}
\][/tex]

Solve the system of equations.

How many foreign stamps does Wally have?
[tex][tex]$\square$[/tex][/tex] foreign stamps

How many domestic stamps does Wally have?
[tex][tex]$\qquad$[/tex][/tex] domestic stamps


Sagot :

Let's solve this system of linear equations step by step. The given equations are:

1. [tex]\(x - y = 34\)[/tex] [tex]\(\quad \text{(Equation 1)}\)[/tex]
2. [tex]\(x + y = 212\)[/tex] [tex]\(\quad \text{(Equation 2)}\)[/tex]

Where:
- [tex]\(x\)[/tex] represents the number of domestic stamps.
- [tex]\(y\)[/tex] represents the number of foreign stamps.

### Step-by-Step Solution:

Step 1: Add the Two Equations

First, we'll add Equation 1 and Equation 2 to eliminate [tex]\(y\)[/tex]:

[tex]\[ (x - y) + (x + y) = 34 + 212 \][/tex]

This simplifies to:

[tex]\[ 2x = 246 \][/tex]

Step 2: Solve for [tex]\(x\)[/tex]

Next, we'll solve for [tex]\(x\)[/tex] by dividing both sides by 2:

[tex]\[ x = \frac{246}{2} = 123 \][/tex]

So, the number of domestic stamps [tex]\(x = 123\)[/tex].

Step 3: Solve for [tex]\(y\)[/tex]

Now, we use Equation 2 to solve for [tex]\(y\)[/tex]:

[tex]\[ x + y = 212 \][/tex]

Substitute [tex]\(x = 123\)[/tex] into the equation:

[tex]\[ 123 + y = 212 \][/tex]

Subtract 123 from both sides:

[tex]\[ y = 212 - 123 \][/tex]

This simplifies to:

[tex]\[ y = 89 \][/tex]

So, the number of foreign stamps [tex]\(y = 89\)[/tex].

### Final Answer:

- Number of foreign stamps Malik has: [tex]\( \boxed{89} \)[/tex] foreign stamps.

- Number of domestic stamps Malik has: [tex]\( \boxed{123} \)[/tex] domestic stamps.