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2 years ago

How do you solve 2+x=-7

Mathematics

2 answers:

Mars2501 [29]2 years ago

7 0

Answer:

x = -9

Step-by-step explanation:

Step 1: Write equation

2 + x = -7

Step 2: Solve for <em>x</em>

Subtract 2 on both sides: x = -9

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

Substitute: 2 - 9 = -7
Subtract: -7 = -7

Orlov [11]2 years ago

3 0

In order to solve this linear equation, we need to group all the variable terms on one side, and all the constant terms on the other side of the equation. In our example,
- term 2, will be moved to the right side.
Notice that a term changes sign when it 'moves' from one side of the equation to the other.
Therefore, the answer is x=-9

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2 years ago

What is the absolute value of | r - 8| = 5?

fomenos

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| r - 8| = 5

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2 years ago

Ellen drove 357.9 miles. Her car gets about 21 miles per gallon. Which is the best estimate of how many gallons of gas Ellen use

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