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navik [9.2K]
3 years ago
12

Simplify this expression: a + 2a + 3b - a - b

Mathematics
2 answers:
aniked [119]3 years ago
8 0
Simplified would be 2a+2b
LenaWriter [7]3 years ago
6 0
<span>a + 2a + 3b - a - b
combine like terms

= 2a + 2b
or
= 2(a+b)</span>
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PLs i need halep fast plssssss
Delvig [45]

Answer:

b=44

b=44 - 9

b=44 + 5

x+x+x = 44

x + (x-9) + (x+5) = 44

3x - 4 = 44

+4

3x =48

÷3

x=16

So, first photo contains 16 birds.

x=16

(x-9) - - > 16-9 = 7

(x+5) - - >16+5=21

16 + 7 + 21 =44

Answer is 16 birds in first photo

Hope this helps!

6 0
2 years ago
A restaurant bill is 56.39.Estimate a 15% tip
hjlf
15% would be 8.4585


hope this helps!!
4 0
3 years ago
What happens to the graph of the line y = mx + b if the value of b is decreased?
ollegr [7]

Answer:

The lines moves lower.

Step-by-step explanation:

The steepness of a line is related to the slope, m.

b is the y-intercept, not the slope.

b is where the line intersects the y-axis.

Changing b changes the vertical position of the line.

Answer: The lines moves lower.

7 0
2 years ago
Evaluate 4<br> M-n if m= -7 and n = 2.
gregori [183]

Answer:

-30

Step-by-step explanation:

I'm assuming the equation is 4m-n. If it is not please tell me.

If we know the values of m and n, we can just substitute inside the expression.

4(-7) - 2\\\\-28 - 2\\\\-30

Hope this helped!

7 0
3 years ago
What is 2+2 in math and the answer is 4
Marianna [84]

Answer:

4

Step-by-step explanation:

7 0
2 years ago
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