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marysya [2.9K]
3 years ago
13

4x + 6 over 2 equals 3x - 15 over 3​

Mathematics
2 answers:
GarryVolchara [31]3 years ago
6 0

Answer:

    x = -8

Step-by-step explanation:

                  15                 5

Simplify -    _              -  —

                    3          to    1

           6

(4x +  —) -  (3x -  5)  = 0  

           2                                Next simplify 6/2 to 3/1 or 3

 (4x +  3) -  (3x - 5)  = 0

 x + 8  = 0

Artyom0805 [142]3 years ago
3 0

Answer:

<h2>x = -8</h2>

Step-by-step explanation:

\dfrac{4x+6}{2}=\dfrac{3x-15}{3}\qquad\text{cross multiply}\\\\3(4x+6)=2(3x-15)\qquad\text{use the distributive property}\\\\(3)(4x)+(3)(6)=(2)(3x)+(2)(-15)\\\\12x+18=6x-30\qquad\text{subtract 18 from both isdes}\\\\12x=6x-48\qquad\text{subtract}\ 6x\ \text{from both sides}\\\\6x=-48\qquad\text{divide both sides by 6}\\\\x=-8

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The functions f and g are defined as follows.
Troyanec [42]

Answer:

f(-5)= 90, g(7)= -3x+4

Step-by-step explanation:

First Solve f(x)

f(x)= 3×^2-3x

Plug in -5 to the x

3(5)^2-3(-5)

f(x)= 90

Then Solve g(x)

g(x)=-3x+4

Plug in the 7 in the x

g(x)=-3x+4

g(x)=17

8 0
3 years ago
What would you multiply the dividend and divisor by in the following division problem so that the divisor would become a whole n
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Devisor is the bottom number
hmm

11.75=11 and 3/4
so times it by 4  to clear denomenator
but do it by top and bottom

23.4/11.75 times 4/4=93.6/47

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5 0
3 years ago
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You need to reserve a shelter at the park. You expect that it will take 1 3/4
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Answer:

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4 0
3 years ago
a carpenter has three sheets of plywood that are each 6.85 feet long. a 3.4-foot piece is cut from one sheet 0.5-foot piece is c
STatiana [176]

Answer:

16.65 feet

Step-by-step explanation:

Okay, we have three boards that are each 6.85 feet long. If we cut 3.4 feet off one board, that board has:

6.85

−

3.4

=

3.45

feet left

If we cut off 0.5 feet off another board, that board has:

6.85

−

0.5

=

6.35

feet left

So, if we take our three new boards, the total length of plywood left is:

6.85

+

3.45

+

6.35

=

16.65

feet

Hope this helps!

7 0
3 years ago
Solve for x: -4(3x − 2) = 6x + 2
stepladder [879]

Answer:

x = 1/3

Step-by-step explanation:

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Distribute

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Subtract 2 from each side

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6 = 18x

Divide each side by 18

6/18 = 18x/18

1/3 =x

4 0
3 years ago
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