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jeyben [28]
3 years ago
8

I need help remembering the steps to solve for 3x-7>2

Mathematics
2 answers:
goblinko [34]3 years ago
7 0
3x-7>2
add 7 to both sides: 3x>9
divide both sides by 3: x>9
Reika [66]3 years ago
3 0
Basically you just do the opposite of whatever is being done to x. So, first, you would ADD 7 to both sides to cancel it out from the side where x is. Remember: the goal is to isolate x. So, add 7, and you have:

3x - 7 + 7  > 2 + 7

Note that -7 + 7 = 0. So, we have successfully cancelled out that term. Then, just do the rest of addition:

3x > 9

Then, the the 3 is being multiplied to x, and you want to get rid of it on that side. So, you do the opposite of multiplication, which is division. You can divide the inequality by 3 on both sides to get:

3x / 3 = 9 / 3 or:
x = 3. 

Note that 3x / 3 is equal to 1x or just x. Here we want that 1 to not get rid of x, because we want to find the value of x.

Remember: isolation of x is what you want. If you need more help/have questions, feel free to tell me.
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a cookie recipe uses 3 cups of flour to make 15 cookies. How many can you make with this recipe with 4 cups of flour?
laiz [17]

Answer:

20 cookies

Step-by-step explanation:

we are given that

three cups of flour is used to make 15 cookies

3 cups of flour is used to make=15 cookies

one cup of flour will be used used to make 15/3 cookies that will be 5

1 cup of flour is used to make =15/3=5

for 4 cups of flour we will multiply 4 on both sides

hence t will give

4 cup of flour is used to make =5*4=20 cookies

So,

According to recipe 4 cup of flour is used to make 20 cookies


8 0
3 years ago
1 How many 1/3s or "thirds” are there between 0 and 1 on a number line?<br> How do you know?
Ilya [14]

Answer:

3

Step-by-step explanation:

Between the numbers 0-1 on a number line you can separate it into 1/3 2/3 3/3. This makes it to where there are 3 1/3 sections.

4 0
3 years ago
The value of 10^4 is 10,000. Use this fact to change 5.2 x 10^4 to standard notation. 5.2 x 10^4 = 5.2 x ____ =?​
ICE Princess25 [194]

Step-by-step explanation:

5.2 × 10000

yep that is the answer

4 0
3 years ago
Read 2 more answers
Need help ! Help needed very much !
aev [14]

Answer:

x/2 > 5

Step-by-step explanation:

Quotient means division

x/2

is more than means greater

x/2 > 5

5 0
2 years ago
What are the two solutions of x2 – 2x – 4 = –3x + 9?
Komok [63]
<span>x=<span><span>​2</span>​<span>​<span>−1+<span>√<span><span>​<span>53</span></span>​<span>​​</span></span></span></span></span><span>​​</span></span>,<span><span>​2</span>​<span>​<span>−1−<span>√<span><span>​<span>53</span></span>​<span>​​</span></span></span></span></span><span>​​</span>

I hope this helps. :)</span></span>
6 0
3 years ago
Read 2 more answers
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