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ddd [48]
3 years ago
12

6у — 10+ 6у + 10=180​

Mathematics
2 answers:
Vlad1618 [11]3 years ago
8 0

Answer: y = 15

Step-by-step explanation:

6y - 10 + 6y + 10 = 180

    + 10          - 10     -10 +10

12y = 180

12y/12 = 180/12

y = 15

               

DiKsa [7]3 years ago
8 0

Answer:

y = 15

Step-by-step explanation:

1st group like terms 6y+6y-10+10=180

2nd add similar elements: 6y+6y=12y

        -10 + 10  = 0

3rd Divide both sides by 12: 12y ÷ 12 = 180 ÷ 12

4th simplify: y = 15

Hope I helped :)

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So today i am learning how to subtract Intergers so i want to learn early so can you please tell me what -15 - ( - 8 ) = it woul
gizmo_the_mogwai [7]
1st you have to know that in mathematiques the signs preceding any number are of paramount importance:
1) addition of 2 digits with different signs:
 a) 8 - 3 = 5
 b)-8 + 3 = -5 (if the negative sign is associated with largest digit, then the subtraction will be negative and vice versa
c) addition of 2 digits with both negative sign
- 5 - 8 = -13 .You jus add up both by keeping the negative sign

2) Multiplication: 2 digits with different signs:
a) (8) x (-3) = -24
b) (-8) x (3) = -24 so (-) x (+) or (+) x (-) is ALWAYS negative

3) Multiplication: 2 digits with SAME signs;
a) +8 x +3 = 24
b) (-8) x (-33) =24 so (-) x (-) or (+) x (+) is ALWAYS POSITIVE

4) what applies on multiplication applies also on division (same principle)

5) Now we come to parenthesis: When you have parenthesis, the sign preceding the parenthesis is also of paramount importance:

a) a positive sign preceding a parenthesis doesn't affect the consents if you remove these parenthesis: +(5 + 3y) = 5+3y or 2(5+3y) = 10+6y

b) a NEGATIVE sign preceding a parenthesis DOES affect the consents if you remove these parenthesis:

-2(4x -2y -3) ==> If you remove the parenthesis by multiplying by (-2), all signs inside will change:  the (+) become ( -) and vice versa,. However mind you, if you have a negative
Now let's take your equation: -15 - ( - 8 ) = -15 +8, remember a negative sign preceding any parenthesis will change  all signs inside if you REMOVE the parenthesis: some examples:
a) -15 + 10 -(4-32x -4y)
1st (-15 + 10) = -5 since the largest number is preceded by a NEGATIVE sign
so : -5 - (4-32x -4y) remove the parenthesis -5 -4 + 32x +4y
b) -(-5-8) -(+5+8) ==> -5-8 -5-8 = -10 - 16 => - 26








































.
5 0
3 years ago
What is 36 rounded to the nearest hundred?
BARSIC [14]
Its 40
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