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Artist 52 [7]
3 years ago
13

Is 7 + square root of 5 equal to square root of 5 plus a number, what do you know about the number? Why?

Mathematics
1 answer:
storchak [24]3 years ago
4 0
The statement is true. The number is seven. I can find this through the commutative property of addition or plugging in the number and reversing the equation.

Key: a is 7, b is square root of five, c is solution, ? is what we're finding

Commutative: a + b = b + a

Plugging and Reversing: a + ? = c, c - a = b
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Answer:

x = 0

Step-by-step explanation:

2x−6=3x+1−2x−7

Step 1: Simplify both sides of the equation.

2x−6=3x+1−2x−7

2x+−6=3x+1+−2x+−7

2x−6=(3x+−2x)+(1+−7)(Here we Combine Like Terms)

2x−6=x+−6

2x−6=x−6

Step 2: Subtract x from both sides.

2x−6−x=x−6−x

x−6=−6

Step 3: Add 6 to both sides.

x−6+6=−6+6

x=0

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Step-by-step explanation:

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Solve for z -0.25z= -1.25
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Answer:

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Step-by-step explanation:

-0.25z= -1.25

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That's

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So we have

<h3>-  \frac{1}{4} z =  -  \frac{5}{4}</h3>

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We have

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the final answer is

<h3>z = 5</h3>

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