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Zanzabum
3 years ago
14

The sum of two numbers is 35. Their difference is 3. Find the numbers

Mathematics
2 answers:
STatiana [176]3 years ago
5 0

Step-by-step explanation:

<em>le</em><em>t</em><em> </em><em>x</em><em> </em><em>and</em><em> </em><em>y</em><em> </em><em>represent</em><em> </em><em>the</em><em> </em><em>t</em><em>w</em><em>o</em><em> </em><em>numb</em><em>e</em><em>r</em><em>s</em>

<em>x+y</em><em> </em><em>=</em><em>3</em><em>5</em><em>.</em><em> </em><em> </em><em> </em><em>eqn</em><em> </em><em>1</em>

<em>x-y</em><em> </em><em>=</em><em>3</em><em>.</em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>eqn</em><em> </em><em>2</em>

<em>let</em><em> </em><em>elim</em><em>i</em><em>n</em><em>a</em><em>t</em><em>e</em><em> </em><em>x</em><em> </em><em>by</em><em> </em><em>subtra</em><em>cting</em><em> </em><em>2</em><em> </em><em>f</em><em>r</em><em>o</em><em>m</em><em> </em><em>1</em>

<em>2</em><em>y</em><em> </em><em>=</em><em>3</em><em>2</em>

<em>divide</em><em> </em><em>both</em><em> </em><em>side</em><em> </em><em>by</em><em> </em><em>3</em>

<em>y</em><em> </em><em>=</em><em> </em><em>1</em><em>6</em>

<em>put</em><em> </em><em>y</em><em> </em><em>=</em><em> </em><em>1</em><em>6</em><em> </em><em>in</em><em> </em><em>eqn</em><em> </em><em>1</em>

<em>x</em><em>-</em><em>1</em><em>6</em><em> </em><em>=</em><em>3</em><em>5</em>

<em>x</em><em> </em><em>=</em><em> </em><em>3</em><em>5</em><em>-</em><em>1</em><em>6</em>

<em>x</em><em> </em><em>=</em><em> </em><em>1</em><em>9</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>x</em><em> </em><em>=</em><em>1</em><em>9</em><em>,</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>y</em><em> </em><em>=</em><em>1</em><em>6</em>

IgorLugansk [536]3 years ago
4 0

Answer:

19 and 16

Step-by-step explanation:

Let x and y be the two numbers

x+y = 35

x-y =3

Add the two equations together

x+y = 35

x-y =3

---------------

2x = 38

Divide by 2

2x/2 = 38/2

x = 19

Solve for y

x-y = 3

19-y = 3

Subtract 19 from each side

19-19 -y = 3-19

-y = -16

y =16

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