Answer:
2(6x + 5 + 2y)
Step-by-step explanation:
12 + 10 + 4y
Factor out 2 from the expression
2(6x + 5 + 2y)
Answer:
Ok so you just ask your teacher, if not ur mom. I feel you can work this one out yourself.
Step-by-step explanation:
Let <em>a</em> be the number in the 10s place and <em>b</em> in the 1s place. Then the original two-digit number is 10<em>a</em> + <em>b</em>.
The sum of the digits is 5:
<em>a</em> + <em>b</em> = 5
Subtract 9 from the original number, and we get the same number with its digits reversed:
(10<em>a</em> + <em>b</em>) - 9 = 10<em>b</em> + <em>a</em>
Simplifying this equation gives
9<em>a</em> - 9<em>b</em> = 9
or
<em>a</em> - <em>b</em> = 1
Add this to the first equation above:
(<em>a</em> + <em>b</em>) + (<em>a</em> - <em>b</em>) = 5 + 1
2<em>a</em> = 6
<em>a</em> = 3
Then
3 - <em>b</em> = 1
<em>b</em> = 2
So the original number is 32. Just to check, we have 3 + 2 = 5, and 32 - 9 = 23.
Answer:
(8 , -4)
Step-by-step explanation:
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Answer:
Step-by-step explanation:
we have

we know that
The sum of a quadratic equation and a linear equation will be a quadratic equation
so
Combine like terms
