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lesya [120]
4 years ago
10

How do u simplify each expression by combining like terms?

Mathematics
1 answer:
Masja [62]4 years ago
6 0

Answer:

1. 8y - 9y = -1y

( 8 - 9 = -1)

3. <u>8a</u> - 6 <u>+a</u> - 1

( i have showed the like terms here)

8a - 1a= 7a

-6 - 1 = -7

7a - 7

5. -x - 2 + 15x

( i have showed the like terms here)

-x + 15x = 14x

(x = 1)

14x + 2

7.<u>  8d</u> - 4 <u>- d</u> - 2

( i have showed the like terms here)

8d - d = 7d

-4 -2 = -6

7d - 6

8. 9a <u>+ 8</u> - 2a<u> - 3</u> - 5a

( i have showed the like terms here)

9a - 2a - 5a = 2a

8 - 3= 5

2a + 5

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PLISS ANSWER :C DONT ANSWER IF YDK THAnKSSS<br> *also pls look at both images :)*
vovikov84 [41]

Answer:

First image: (6, -1)

2nd image: y = 63

Explanation:

1)

2x + y = 11

1/2x - 5y = 8

y = -2x + 11

1/2x - 5(-2x + 11) = 8

1/2x + 10x - 55 = 8

10.5x - 55 = 8

10.5x = 63

x = 6

2x + y = 11

2(6) + y = 11

12 + y = 11

y = -1

(x , y) = (6, -1)

2)

1/4(8y - 4.8) = 2 (0.9y + 5.4) + 3/5

2y - 1.2 = 1.8y + 10.8 + 0.6

0.2y - 1.2 = 11.4

0.2y = 12.6

y = 63

8 0
3 years ago
a figure consists of a square and a semicircle ,as shown in the diagram below. if the length of the square is 6 , what is the ar
Sladkaya [172]
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4 years ago
Simplify each expression. 7(2y+1) + 3y
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3 years ago
20 + 30 x 0 + 1 = what ?
natta225 [31]
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6 0
3 years ago
Read 2 more answers
Identify and write the hypothesis and the conclusion of the following conditional statement. "If I am running, then I am not awa
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Answers:

Hypothesis = "I am running"

Conclusion = "I am not awake"

===================================

Explanation:

All conditional statements are in the form "If P, then Q" where P and Q are placeholders for the hypothesis and conclusion respectively.

So you can say the basic format of a conditional is "If hypothesis, then conclusion".

7 0
3 years ago
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