The sum of x and 5 in 7
Answers
Answer:
x + 5 = 7
Step-by-step explanation:
x = 7-5
x = 2
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Answer:
5 + 2 = 7
Step-by-step explanation:
My friend, I have never come across such a question.
But I will try to understand...
Sum means total, so 'what is the total of 5 and x in 7'?
...
5 + 2 = 7.
So x = 2.
Algebraically, here's how to solve.
(+) 5 + x = 7
Notice how we have a + before the 5 because it's positive. We know 5 is positive because there is no negative sign before 5, so automatically it is positive.
When solving, we need to work backwards. If you have +5, you need to -5. And you need to do so on both sides. Also, the aim of solving equations is to isolate the variable (basically the letters in the equation. In this case, it's x).
+5 - 5 = 0
+7 - 5 = 2
Since the 5 is gone, we only have x on the left and then 2 on the right (because we subtracted 5, remember?).
So it looks like this: x = 2.
Good luck, student!
Note: Let me know if I misunderstood you, I would fix it once I understand.