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Nata [24]
3 years ago
7

Adding and subtracting integers

Mathematics
1 answer:
belka [17]3 years ago
7 0

1) -15

2) 5

3) -13

4) -4

5) 5

6) 14

7) 0

8) -8

9) -8

10) 7

These are very easy, when subtracting a negative from a positive think of it as just plain subtraction. When adding a negative to a positive, again, think of it as subtraction. When subtracting two negatives it's basically addition but you final answer should have a negative sign.

Hope I could help! :)

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08.03 MC)
mihalych1998 [28]

Answer:

(5,38)

Step-by-step explanation:

<u><em>The correct question is</em></u>

A system of equations is shown below:

y = 8x − 2

y = 9x − 7

What is the solution to the system of equations?

(−5, 38)

(−5, −38)

(5, 38)

(5, −38)

we have

y=8x-2 ----> equation A

y=9x-7 ----> equation B

Solve the system by substitution

substitute equation B in equation A

9x-7=8x-2

solve for x

9x-8x=7-2

x=5

<em>Find the value of y</em>

Substitute the value of x in the equation A or in the equation B

y=8(5)-2=38

therefore

The solution is the point (5,38)

7 0
3 years ago
What is the measure of the missing angle in this triangle?<br> 25°<br> 155<br> 35°<br> 60°
Anettt [7]

Answer: im just going to guess 35 degrees

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How do you solve: 4/10y+28=0
Bezzdna [24]

Answer:

<h2>y = -70</h2>

Step-by-step explanation:

\dfrac{4}{10}y+28=0\qquad\text{subtract 28 from both sides}\\\\\dfrac{4:2}{10:2}y=-28\\\\\dfrac{2}{5}y=-28\qquad\text{multiply both sides by 5}\\\\5\!\!\!\!\diagup^1\cdot\dfrac{2}{5\!\!\!\!\diagup_1}y=-140\\\\2y=-140\qquad\text{divide both sides by 2}\\\\y=-70

3 0
3 years ago
Need help ASAP please!
Mazyrski [523]

Answer:

i think it's a

Step-by-step explanation:

6 0
3 years ago
Solve for x: m(fx+a)=z+g
Inga [223]
X= -a/f = z/mf + g/mf
-a is over f
+ z over mf
+ g over mf
4 0
3 years ago
Read 2 more answers
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