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nexus9112 [7]
3 years ago
6

I dont get it. I need help with a and b plz

Mathematics
1 answer:
ser-zykov [4K]3 years ago
7 0
Subtract 120 every time but I don’t know the second one
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What is -6x-7x? i don't understand how to do it please teach me how to solve this
Aloiza [94]

<u>How to do Negative Addition</u>

Negative Addition is almost like Positive addition. The only catch in Negative Addition is that it is like subtracting. Let me make this clearer. If you draw a number line, with the positives and the Negatives, it will look somewhat like this. (Attachment down below). As you see, the Positives are increasing to the right, but the Negatives are increasing to the left.

When you do addition, you increase right? Like you have 8+4 which is 12. In positive addition you increase to the right, (look on number line). So, if you reverse it to -8+4 you would have to increase to the right, not the left. -8+4 is not -12 because when you add, you increase not decrease. (-12 is smaller than -8 and 4).

So that means -8+4 is -4.

Trick: Subtraction

Another way to think about it is replacing the addition sign to a minus sign then make the negative go away. So, we get 8-4 which is 4. And then we put the negative sign at the 4, so we get -4.

If you don't understand this, plz tell me

<u>Solving your Problem</u>

1) Take out the X to make it simple (Later we are going to add it back

2)Draw a number line to help you (Optional)

3) Use the subtraction Trick (Optional, but imma use it)

4) 6-7= -1 (Make that positive)  

5) The answer is 1x

I hope this helped if you want here is some practice questions to get you ready and comfortable with this skill

Ps. Brianlist Would help

Practice Work~

1) -3+2

2) -10+9

3)-150+100

4) 60+-200

3 0
2 years ago
There are 10 fish in all percy tank.4 of the fish are angel fish. There are 4 more mollie fish than tetra fish. How many of each
ElenaW [278]
4 Angel fish ,4 Mollie fish and 2 tera fish
6 0
3 years ago
-6 + -8 10 points plz help
satela [25.4K]

Answer

The answer is negative 14.

Step-by-step explanation:

When you add a negative by a negative it equals a negative. Like if you add 1 + 1 it's going to equal 2 which is a positive, not a negative. So the answer is technically 8 + 6 which is 14 and all you have to do is add a negative sign.

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Use mathematical induction to prove that the statement is true for every positive integer n.
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Answer:

3x-4v

it is because of me

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3 years ago
How do i answer this? Please help
pychu [463]

Answer:

which 1st page or 2nd page

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3 years ago
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