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RideAnS [48]
2 years ago
9

9x-7=-52 Show all work and justify each step

Mathematics
2 answers:
NikAS [45]2 years ago
8 0

Answer:

x = -5

Step-by-step explanation:

9x - 7 = -52

we want to single out x,

add 7 to both sides to be one step closer to getting x alone

9x - 7 + 7 = -52 + 7

9x = -45

divided both sides by 9 to get x alone

9x / 9 = -45 / 9

x = -5

Let me know if you need any clarification!

ch4aika [34]2 years ago
4 0

9x - 7 =  - 52

Firstly rearrange the variable on the left side of the equation...

9x =  - 52 + 7

Calculate the sum or differences

9x =  - 45

x =  -  \frac{45}{9}  \\

x =  - 5

<em>:</em><em>)</em>

<em>.</em><em>.</em>

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The point (2,1) is a solution to which of the following systems of equations
Triss [41]

Answer:

x+y = 3

3x-y = 5

Step-by-step explanation:

x+y = 3

3x-y = 5

This system of equation will give the points(2,1).

Lets substitute the values x=2 and y = 1 in the equations:

x+y=3    equation 1

2+1 =3

3=3

3x-y=5  equation 2

3(2)-1=5

6-1=5

5=5

Lets solve the system:

Add the equations to eliminate y from the system:

x+y = 3

3x-y = 5

_______

4x    = 8

Now divide both the sides by 4

4x/4 = 8/4

x=2

Now substitute the value of x in equation 1:

x+y=3

2+y=3

Combine the constants:

y=3-2

y=1....

4 0
4 years ago
Round 72,934 to the nearest hundreds place and enter the value below.
anastassius [24]

Answer:

72,900

Step-by-step explanation:

9 is in the hundreds place so therefore you should look to the left which us 3 and 3 is less than 5 so the answer is 72,900

5 0
3 years ago
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3 years ago
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How many times as large is 6*10^24 then 1*10^2 (please hurry)
DedPeter [7]

Answer:

Step-by-step explanation:

Awkward phrasing. Try the question with simpler numbers: How many times as large is 8 than 4?

8 is two times as large as 4. How do you know? You know because 8 ÷ 4 = 2.

How many times as large is 6*10^24 than 1*10^2?

(6×10²⁴) ÷ (1×10²) = (6÷1 ) × (10²⁴÷10²)

6×10²⁴⁻² = 6×10²⁰

6×10²⁴ is 6×10²⁰ times as large as 1×10²

5 0
3 years ago
Find m&lt;1<br> 33°<br> 28°<br> 42°<br> 47°
marissa [1.9K]

Answer:

it's answer is 33°

Step-by-step explanation:

116° + 31° + m<1 = 180° [being sum of angles of triangle ]

147° + m< 1 = 180°

m<1 = 180° - 147°

m<1 = 33°

hope \: i t \: will \: help

5 0
3 years ago
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