solve the equation 2x+3=7?
回答 (19)
✔ 最佳答案
2x + 3 = 7
2x = 7 - 3
2x = 4
x = 4/2 or 2
Answer: x = 2
Proof:
2(2) + 3 = 7
4 + 3 = 7
This is an equation, which means that one side is equal to the other side.
Thus, 2x + 3 equals to 7.
So take three from both sides.
2x = 4, here's what happened: 2x +3 subtract 3 and 7 subtract 3.
Now you have 2 multiplied by an unknown number which all equals 4.
Well, let's divide by two so that we can isolate variable "x".
2x = 4
(2x) / 2 = 4 / 2
Then, x = 2.
Hope that helps!
2x + 3 = 7
2x = 7 - 3
x = 4/2
x = 2
Multiply both sides by 7 to get -2x + 3 = 35 -2x = 32 x = -16.
2x + 3 = 7
2x = 7 - 3
2x = 4
x = 4/2
x = 2
2x + 3 = 7
Add -3 from each side of the equation
2x + 3 - 3 = 7 - 3
2x = 4
Divide each side by 2
2x/2 = 4/2
x = 2
This linear equation in two variables is solved in the following way:
2x + 3 = 7
2x = 7 - 3
2x = 4
x = 4/2
Thus x = 2
- By Nicky ...happy to help...!!
:)
2x + 3 = 7
2x = 7 - 3
2x = 4
x = 4/2
=> x = 2
收錄日期: 2021-05-01 12:44:11
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