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3 years ago

Qwerty99 pls solve this:

Mathematics

2 answers:

olganol [36]3 years ago

7 0

Answer:

x = 2

Step-by-step explanation:

Given:

3x - 2x = 7 - 5

Subtract same variables:

(1)x = 7 - 5

Answer:

x = 2

Funny thing, I was qwerty99. Seemed I answered this late but better that than never. Sorry again, koziadam.

Komok [63]3 years ago

5 0

Remember you can do anything to an equaiton as long as you do it to both sides

3x-2x=7-5
combine like terms
1x=2
x=2

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4 years ago

Read 2 more answers

Solve the following equation: |-3x+3|-9=12

photoshop1234 [79]

Answer:

$\large\boxed{\left \{ {{x\: = \: 8} \atop {x\: =\: -6}} \right. }\\$

Step-by-step explanation:

$\left| -3x+3 \right| -9=12$

At first, let's add - 9 to both the sides. So,

$\left| -3x+3 \right| -9=12\\|-3x+3|=21$

Now, using the definition of absolute value, we can change the equation to..

$-3x+3=21 \\-3x+3=-21$

By, subtracting 3 from both the sides,

$-3x=18 \\-3x=-24$

Now, divide both the sides by 6,

$x=-6 \\x=8$

We now have 2 values of x. They are...

$\large\boxed{\left \{ {{x\: = \: 8} \atop {x\: =\: -6}} \right. }\\$

____________

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$\mathfrak{Lucazz}$

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2 years ago

The family size bottle of sunscreen holds 12121212 fluid ounces (fl oz)(\text{fl oz})(fl oz)(, start text, f, l, space, o, z, en

Musya8 [376]

Answer:

The regular bottle holds 9 fl oz less

Step-by-step explanation:

Given

Family Size = 12 fl oz

Required

Determine the size held less by the regular bottle

From the question, we have that the regular bottle holds 75% less;

$Regular\ Size = 75\% * Family\ Size$

Substitute 12 fl oz for Family Size

$Regular\ Size =75\% * 12\ fl\ oz$

Convert percentage to fraction

$Regular\ Size = \frac{75}{100} * 12\ fl \oz$

$Regular\ Size = \frac{75 * 12\ fl\ oz}{100}$

$Regular\ Size = \frac{900\ fl\ oz}{100}$

$Regular\ Size = 9\ fl\ oz$

<em>Hence, the regular bottle holds 9 fl oz less</em>

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4 years ago