one number is 1 more than 7 times the other number. if their sum is 73 more than twice the smaller number. find the numbers
Answers
Answered by
4
Answer:
85 and 12
Step-by-step explanation:
let smaller be y and greater be x
as per que
x = 1 + 7y
y + x = 73 + 2y
replacing x
y + 1 + 7y = 73 + 2y
8y - 2y = 73 - 1
6y = 72
y = 72÷6
y= 12
x = 1 + 7× 12
x = 85
Answered by
0
Answer:
Let x and y be the two numbers.
Then,
x - 1 = 7y
=> x = 7y + 1 ---------->(i)
And,
x + y -73 = 2y
=> (7y + 1) + y -73 = 2y [ substituting the value of x from equation (i)]
=> 8y - 72 = 2y [Adding up the like terms]
=> 8y - 2y = 72 [ Transposing 2y and -72]
=> 6y = 72
=> y = 72/6
=> y = 12 --------->(ii)
Now, substituting the value of y in equation (i),we get
x = 7x 12 + 1 = 84 + 1 = 85
Hence, the numbers are 85 and 12
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