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Nataly [62]
3 years ago
13

2x + 7 = 19 X=? Which one is the answer

Mathematics
1 answer:
Anna71 [15]3 years ago
8 0

Answer:

x=6

Step-by-step explanation:

first you subtract 7 and 7 and you also have to subtract 7 and 19 and the answer will be 12 then you divide 2 and 2 to make it only x so if you divide 2 and 2 you also have to divide the 12 so 12 divided by 2 equal 6 so the x is equal to 6

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Find three consecutive even integers such that the sum of the smallest number and twice the middle number is 20 more than the la
motikmotik

Answer:

<h3>              10, 12, 14</h3>

Step-by-step explanation:

Consecutive even integers increase by 2.

x   ← an integer

2x  ← an even integer (the smallest)

2x+2   ← next even integer consecutive to 2x (the middle one)

2x+2+2=2x+4  ← the last even integer consecutive to 2x+2 (the largest)

2(2x+2)    ← twice the middle number

2x+2(2x+2)   ←  the sum of the smallest number and twice the middle

2x+4+20   ←  20 more than the largest number

2x + 2(2x + 2) = 2x + 4 + 20

2x + 4x + 4 = 2x + 24

            -4           -4

            6x = 2x + 20

         -2x       -2x

            4x = 20

            ÷2     ÷2

            2x = 10

2x+2 = 10+2 = 12

2x+4 = 10+4 = 14

6 0
4 years ago
Which of the following a proportion? 2/5 = 4/25, 4/6 = 6/9, 4/3 = 6/8, 5/6 = 10/18
kaheart [24]

Answer:

4/6=6/9

Step-by-step explanation:

They can both be simplified to 2/3

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3 years ago
----------------------------------------------------------------------
Greeley [361]

Step-by-step explanation:

nzkaoavdvsoasb xzakoakaidbzbsva

7 0
3 years ago
Read 2 more answers
I need HELP ASAP like NOW
LekaFEV [45]

Answer:

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Step-by-step explanation:

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