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Inessa [10]
3 years ago
7

-2(-6x+2u-3)

Mathematics
1 answer:
lisov135 [29]3 years ago
3 0

Answer:

c

Step-by-step explanation:

i just did the test this is my first answer please like

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PLEASE HELP !!! Will give brainest !!!!!​
Margarita [4]

Answer:

9.6

2.4.

Step-by-step explanation:

It is easy. If you do with calculator it's easy.

8 0
3 years ago
Read 2 more answers
X+2y=10 6y=--3x+30 Use algebraic rules of equations to predict the solution to the system of equations.
MaRussiya [10]
X + 2y = 10 . . . (1)
6y = -3x + 30 . . . (2)

From (2), 3x + 6y = 30
3(x + 2y = 10)
3 x (1)

Since, the second equation is a multiple of the first equation, the system will have an infinitely number of solutions.
3 0
3 years ago
F(x)=3x-7 find the value of c so that f(c) =20 is true
Andreas93 [3]

<u>Answer</u>:

c = 9

<u>Explanation</u>:

given: f(x)=3x-7

<em>if f(c) =20</em>

To solve this replace x with c and then y is 20.

<u>Solve</u>:

3c - 7 = 20

3c = 27

c = 27 ÷ 3

c = 9

7 0
2 years ago
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twice the sum of a number and 2 is equal to three times the difference of the number and 3. Find the number
Lana71 [14]
2(x+2)=3(x-3)
2x+4=3x-9
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-x=-13
x=13

The number is 13
3 0
3 years ago
2. (01.02 MC)<br> Find the value of the expression 4a4 – 2b2 + 40 when a = 2 and b = 7. (5 points)
Sergio039 [100]

Answer:

4x2x4 - 2×7×2 + 40

64 - 28 + 40=76

6 0
3 years ago
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