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Shalnov [3]
2 years ago
6

Solve -2x - 5 = 4 for x.

Mathematics
2 answers:
MrRa [10]2 years ago
7 0

Step-by-step explanation:

-2x - 5 = 4

-2x = 9

x= -4.5

hope it helps

joja [24]2 years ago
6 0

Answer:

<u>-2x </u><u>-</u><u> </u><u>5</u><u> </u><u>=</u><u> </u><u>4</u>

<u>-2x </u><u>=</u><u> </u><u>4</u><u> </u><u>-</u><u> </u><u>-</u><u> </u><u>5</u>

<u>-2x </u><u>=</u><u> </u><u>9</u>

<u>x=</u><u> </u><u>9</u><u>/</u><u>2</u>

<u>x </u><u>=</u><u> </u><u>4</u><u>.</u><u>5</u>

<h2><u>I </u><u>HOPE</u><u> IT</u><u> IS</u><u> HELPFUL</u></h2>

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State the property that justifies the statement: If 4x + 9 = 15 and X=2y + 1,
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Answer:

Substitution property of equality

Step-by-step explanation:

Given

4x + 9 = 15 and x = 2y + 1

Then

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Required

State the property

From the list of options, (d) answers the question.

This is so because:

Substitution property of equality states that

If a = b then b = a

In other words, both can replace one another.

So if x = 2y + 1, then 2y + 1 can be substituted for x in 4x + 9 = 15

So:

4x + 9 = 15  becomes

4(2y + 1) + 9 = 15

<em>Hence, it is substitution property of equality</em>

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The y-intercept repesents the solutuions of a polynomial true or false
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