Get clear, concise, and accurate answers to your questions on IDNLearn.com. Get the information you need from our experts, who provide reliable and detailed answers to all your questions.

Malik collects rare stamps and has a total of 212 stamps. He has 34 more domestic stamps than foreign stamps.

Let [tex]\( x \)[/tex] represent the number of domestic stamps and [tex]\( y \)[/tex] represent the number of foreign stamps.

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

1. How many foreign stamps does Malik have? [tex]\(\square\)[/tex] foreign stamps

2. How many domestic stamps does Malik have? [tex]\(\square\)[/tex] domestic stamps


Sagot :

To solve this system of equations, we need to find the values of [tex]\(x\)[/tex] and [tex]\(y\)[/tex] that satisfy both equations simultaneously.

The system of equations given is:
[tex]\[ \begin{array}{l} x - y = 34 \\ x + y = 212 \end{array} \][/tex]

Let's solve this step-by-step.

1. Add the two equations to eliminate [tex]\(y\)[/tex]:
[tex]\[ \begin{array}{c} (x - y) + (x + y) = 34 + 212 \\ \end{array} \][/tex]

Simplify the left side:
[tex]\[ x - y + x + y = 34 + 212 \][/tex]

Combine like terms:
[tex]\[ 2x = 246 \][/tex]

Solve for [tex]\(x\)[/tex]:
[tex]\[ x = \frac{246}{2} = 123 \][/tex]

So, Malik has 123 domestic stamps.

2. Substitute [tex]\(x = 123\)[/tex] back into one of the original equations to find [tex]\(y\)[/tex]:

We use the second equation:
[tex]\[ x + y = 212 \][/tex]

Plug in [tex]\(x = 123\)[/tex]:
[tex]\[ 123 + y = 212 \][/tex]

Solve for [tex]\(y\)[/tex]:
[tex]\[ y = 212 - 123 = 89 \][/tex]

So, Malik has 89 foreign stamps.

Therefore, Malik has:
[tex]\[ \boxed{89} \][/tex]
foreign stamps and
[tex]\[ \boxed{123} \][/tex]
domestic stamps.