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lora16 [44]
3 years ago
9

If x + 4y = 18 and x - 4y = 2, then x =? A) 2 B) 4 C) 5 D)10

Mathematics
1 answer:
s2008m [1.1K]3 years ago
5 0

Answer:

The Final answer is  option D ) 10

x=10

Step-by-step explanation:

Given:

x + 4y = 18     ......................Equation( 1 )

x - 4y = 2        ......................Equation( 2 )

To Find:

x =?

Solution:

Adding Equation ( 1 ) and ( 2 ) we get

x+4y+x-4y=18+2\\\\2x=20\\\\\therefore x =\frac{20}{10} \\\\\therefore x =10

The Final answer is  option D ) 10

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(n/2)+5

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