Show me how to solve problems like this.
1.) 7 + (-9) + (-5) + 6
2.) [(-3)(-4)(-5)]/ (-2)(-3)]
Try reading the following sites' pages very carefully. Then make an attempt at doing the problem, and we'll see if you got it right:
http://www.jiskha.com/mathematics/algebra/distribution.html
(Broken Link Removed)
http://www.softmath.com/tutorials2/multiplying-dividing-adding-subtracting-integers.html
I will explain it simply okay. Searching sites is a waste of time.
-Subtracting Real Numbers-
If a and b are real number then a - b is = to a + (-b)
The paretheses indicate that number stays negative.
so: Step one
7+(-9)+(-5)+6 :: add negative 9 and 7, which translates to 7+(-9) or 7-9
7+(-9)= -2
-9+7 = -2
7 - 9 = -2
"you following?"
Step two
(-2) + (-5):: when you add two negatives the answer is negative.
-2 + -5 = -7
Step Three
(-7)+6 or 6-7
= -1
In tree form
7+(-9)+(-5)+6
(-2)+(-5)+6
(-7)+6
= -1
Problem # two
-Multiplying and Dividing Real Numbers-
*pointers*
-Multiplication of real numbers is just like whole numbers. Only you have to determine if the answer is negative or positive.
-when you mulitply two negatives together you get a positive answer.
-when you mulitply a positive and a negative you get negative answer.
- Brackets [ ] those things, indicate that the equation inside of the bracket is done first in the order of operations.
- when parentheses and/or brackets are next to each other without a sign it means to multiply.
So: Step one, remove the brackets by doing the equation inside.
Here is the tree
[(-3)(-4)(-5)](-2)(-3)]
[(-12)(-5)](-2)(-3)]
[(-60)](-2)(-3)]
[(-60)]6]
(-360)
-Step two was perform the operation outside of the bracket. (-2)(-3)=6
[(-60)]6]
now multiply
= (-360)
I hope I helped.
Yes, you provided a good explanation of how to solve the given problems. To summarize:
1) For the expression 7 + (-9) + (-5) + 6:
- First, add the negative 9 to 7, which gives you -2.
- Then, add the -5 to -2, resulting in -7.
- Finally, add 6 to -7, giving you a final answer of -1.
2) For the expression [(-3)(-4)(-5)] / (-2)(-3):
- Start by performing the operation inside the brackets: (-3)(-4)(-5) = -60.
- Next, multiply -60 by -2, resulting in 120.
- Finally, divide 120 by -3, giving you a final answer of -40.
Remember, when multiplying or dividing negative numbers:
- If you multiply two negative numbers or a positive and a negative number, the result is positive.
- If you multiply or divide a positive and a negative number, the result is negative.
I hope this explanation helps you understand how to solve these types of problems! Let me know if you have any further questions.
Yes, you did a great job explaining the steps for solving the problems!
For problem 1: 7 + (-9) + (-5) + 6
1. Start by adding -9 to 7: 7 + (-9) = -2
2. Then, add -5 to -2: -2 + (-5) = -7
3. Finally, add 6 to -7: -7 + 6 = -1
Therefore, the final answer is -1.
For problem 2: [(-3)(-4)(-5)] / ((-2)(-3))
1. Start by simplifying the multiplication inside the parentheses: (-3)(-4)(-5) = -60.
2. Then, simplify the multiplication outside the parentheses: (-2)(-3) = 6.
3. Finally, divide -60 by 6: -60 / 6 = -10.
Therefore, the final answer is -10.