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2 years ago

Ok so if you have an equation with a variable on both sides like this : 5x-6=2x

Mathematics

1 answer:

salantis [7]2 years ago

8 0

Answer:

the answer is x=2

Step-by-step explanation

First of all put all x in one side of equation and number to the other side

Bare in mind that when we move from one side of equation to another positive integers become negative and negative integers become positive

5x-6=2x

5x-2x=6 here we moved 2x to other side of equation thus, it become -2x, and -6 was moved to other side of equation thus it become 6

3x=6 we subtracted from 5x-2x and found 3x since we can subtract the variables having the same element i this case that is x

x=6/3 we divided 6/3 in order to find the value of x. please note that 3x means 3*x

x=2

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serious [3.7K]

A solution with a pH of 11 has a [H+] of $1.0\times 10^{-11}$

Option B is correct option.

Step-by-step explanation:

A solution with a pH of 11 has a [H+] of= ?

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Formula used: $pH=-log[H+]$

Putting values and finding [H+]

$pH=-log[H+]\\\,[H+]\,=10^{-pH}\\\,[H+]\,=10^{-11}\\\,[H+]\,=1.0\times 10^{-11}$

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Option B is correct option.

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3 years ago

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2 years ago

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masya89 [10]

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2 years ago

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almond37 [142]

Answer:

Step-by-step explanation:

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2 years ago

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Hatshy [7]

Answer:

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Step-by-step explanation:

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2 years ago