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Ksju [112]
3 years ago
13

Helppppppppppppppppppppppppp

Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0
Set the two expressions equal to each other.

7x + 3 = 9x

Simplify, isolate the x, subtract 7x from both sides

7x (-7x) + 3 = 9x (-7x)
3 = 2x

Set the equation = 0, subtract 3 from both sides

3 (-3) = 2x (-3)

0 = 2x - 3

2x - 3, or D, should be your answer

hope this helps
You might be interested in
Solve the equation x – 5 = 0.1(x + 5) for x. Round your answer to the nearest hundredth.
Nadusha1986 [10]

Answer:

x=6.111....

Step-by-step explanation:

x-5=0.1(x+5)

distribute 0.1 into (x+5)

x-5=0.1x+0.5

subtract 0.1x on both sides

x-0.1x-5=0.5

combine like terms

0.9x-5=0.5

add -5 on both sides

0.9x=5.5

divide both sides by 0.9

\frac{0.9x}{0.9} =\frac{5.5}{0.9}

x=55/9 or 6.11111.......

hope this helps

7 0
4 years ago
Find 230 percent of 46
vampirchik [111]
The correct answer is 105.8
5 0
3 years ago
Simplify 270 ÷ 3[(4 - 3)3 - (-9)] - 53
Andreyy89
270 / 3 ( (4 - 3) 3 - (-9) ) - 53
270 / 3 (1 x 3 - (-9) ) - 53
270 / 3 (3 + 9) - 53
270 / 3 x 12 - 53
In PEMDAS, with multiplication and division, you must go left to right, not multiplication then division.
90 x 12 - 53
1080 - 53
1027 is your answer
4 0
4 years ago
Read 2 more answers
Lane is ten times Mel's age. if the difference in their age is 27, how old is Mel?
Digiron [165]

If one number is ten times the other one, then the big wide open space
between them with the wind blowing through it is the other nine times it.

The 27 years is 9 times Mel's age.

Mel is 27/9  =<em>  3 years old</em>.

Lane is (3 + 27)  =  30 years old.

Lane is  (30/3)  =  10 times Mel's age.
The difference is (30 - 3) = 27 years.

3 0
4 years ago
Please find the surface area of a sphere with a volume of 36
natta225 [31]

Answer:

12 is the answer

Step-by-step explanation:

I just know the answer

7 0
3 years ago
Read 2 more answers
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