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BabaBlast [244]
3 years ago
10

Simply 7x + 7 + 6x-9

Mathematics
2 answers:
klasskru [66]3 years ago
8 0

Answer:

13 x + -2

Step-by-step explanation:

Simplify the following:

7 x + 7 + 6 x - 9

Grouping like terms, 7 x + 7 + 6 x - 9 = (7 x + 6 x) + (7 - 9):

(7 x + 6 x) + (7 - 9)

7 x + 6 x = 13 x:

13 x + (7 - 9)

7 - 9 = -2:

Answer:  13 x + -2

Amiraneli [1.4K]3 years ago
7 0

Answer:

13x-2

Step-by-step explanation:

7x + 7 + 6x-9

Combine like terms

7x+6x +7-9

13x-2

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10 points please help Thank you
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Step-by-step explanation:

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3 0
4 years ago
What is the answer to x - 10 + -6 + 4
mariarad [96]

Answer: x-12

Step-by-step explanation:

Simplify.

x

−

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x−10−6+4

2 Collect like terms.

x

+

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−

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3 Simplify.

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8 0
3 years ago
Find the equation of a line in slope-intercept form that
Vlada [557]

Answer:

y = 5x + 3

Step-by-step explanation:

Slope-intercept form is y=mx+b (where m is the slope and b is the y-intercept)

First find the slope with (13-8)/(2-1) = 5

Plug the slope and one of the coordinates into the equation to find the y-intercept now:

13 = 5 * 2 + b

13 = 10 + b

b = 3 (y-intercept is 3)

Now, write final equation:   y = 5x + 3

6 0
2 years ago
Please help thank you very much
sineoko [7]

Answer:

96

lower right

Step-by-step explanation:

Part 1

Givens

a1 = - 20

d = +4

n = 30

Equation

a30 = a1 + (n - 1)d

Solution

a30 = -20 + (30 - 1)*4

a30 = -20 + 29*4

a30 = - 20 + 116

a30 = 96

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

Part 2

Formula

Sum = (a1 + L)*n/2

n = 30

So only the two on the right can be considered

a1 = -20

L = 96

Sum = (-20 + 96)30/2 is the bottom right. D if you think of it that way.

8 0
3 years ago
In ΔBCD, the measure of ∠D=90°, the measure of ∠B=71°, and DB = 67 feet. Find the length of BC to the nearest tenth of a foot.
Paladinen [302]

Answer:  Side BC would be 205.7ft

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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