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Andrej [43]
2 years ago
13

Solve for x, show all your work: -5x = 45 Question 7 options:

Mathematics
2 answers:
barxatty [35]2 years ago
5 0
Hello,

Shall we begin?

-5x = 45  *(-1)
5x = - 45
x = - 45/5
x = -9

<span>Answers: x = -9</span>
kakasveta [241]2 years ago
3 0

Answer:

<h2>x = -9</h2>

Step-by-step explanation:

This is a very easy algebra question, but let's break it down step-by-step.

<h3>Step 1: Divide by -5 & First Answer</h3>

x = -9, this seems correct

<h3>Step 2: Check the Answer</h3>

In algebra, you can always check your answer by inserting the number you got in for x in the original equation.

-5(-9) = 45

Two negatives multiplied make a positive.

45 = 45 <em>Correct</em>

<h3>Step 3: Final Answer</h3>

Final answer is -9

<em>PLEASE MARK BRAINLIEST</em>

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Answer:

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Step-by-step explanation:

We want to prove algebraically that:

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We use the relations

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Before we substitute, let us rewrite the equation to get:

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We now substitute to get:

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This means that:

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Expand:

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3 years ago
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