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Mamont248 [21]
2 years ago
12

Solve the following equations. 2x - y = 8 3x + y = 17​

Mathematics
1 answer:
aleksley [76]2 years ago
6 0
<h2>Answer: (5, 2)</h2>

<h2>System of equations:</h2>

2x - y = 8

3x + y = 17

<h2>Solve for x:</h2>

2x - y = 8

3x + y = 17

________ +

5x = 25

x = 5

<h2>Plug in x to one of the equations to solve for Y</h2>

2(5) - y = 8

10 - y = 8

-y = -2

y = 2

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3. Are these ratios equivalent? 35:28 and 10:8 *
attashe74 [19]

Reduce each ratio to its minimum expression to find if they are equal.

35:28

\begin{gathered} \frac{35}{28}=\frac{7\cdot5}{7\cdot4} \\ =\frac{5}{4} \end{gathered}

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Another way to check a:b is equivalent to c:d, is that a*d = b*c

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\begin{gathered} 35\cdot8=280 \\ 10\cdot28=280 \end{gathered}

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4 0
1 year ago
What is -3x+13=16 help me with each step.
hoa [83]

-3x+13=16

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Divide by -3 for both sides.

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x=-1

Answer: x=-1

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