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Andrews [41]
4 years ago
5

What is the answer to this −8(9r−1)−9(−8r+2)

Mathematics
2 answers:
Nitella [24]4 years ago
7 0

Answer:

-10

Step-by-step explanation:

-72r+8+72r-18

-10

Artist 52 [7]4 years ago
7 0
-10 is the answer I simplified it
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1) y = 2x – 17<br> -3x – y=-13
scoray [572]

Answer:

<h2>x = 6, y = -5 → (6, -5)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}y=2x-17&\text{subtract}\ 2x\ \text{from both sides}\\-3x-y=-13\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}-2x+y=-17\\-3x-y=-13\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad-5x=-30\qquad\text{divide both sides by (-5)}\\.\qquad\boxed{x=6}\\\\\\\text{Substitute the value of x to the first equation}\\\\y=2(6)-17\\y=12-17\\\boxed{y=-5}

8 0
3 years ago
What is the solution to this inequality?<br> –16x &gt; –80
Kisachek [45]

Answer:

x < 5

Step-by-step explanation:

–16x > –80

Divide each side by -16, remembering to flip the inequality

-16x/-16< -80/-16

x < 5

7 0
3 years ago
What is the answer to <br> 3/2x - 5 = y
77julia77 [94]

Answer:

x = \frac{2y + 10}{3}

y = \frac{3}{2}x -5

Step-by-step explanation:

Hope this helps!

6 0
3 years ago
(4 + 8) / 2 x 2. Help pls!!!!!!!!!!!!!!!!
Shkiper50 [21]

Answer:

I think its 3 cus 4 +8 = 12 , 2 x 2 is 4 then 12 / 4 is 3

Step-by-step explanation:

8 0
3 years ago
HELP ME PLEASEEE I CANT DO IT ANYMORE
olasank [31]

Answer:

Yes

Step-by-step explanation:

We can add 20 to both sides and get 120=4v. Divide both sides by 4 and find that 30=v. Therefore, Lance is correct.

6 0
2 years ago
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