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Solve for x. 2x−5=−x+7

2 Answers

6 votes

Answer:

x = 4

Explanation:

You need to isolate the variable on one side first so that the equation is easier to solve. To do that, add x to both sides to get 2x + x, which is 3x. This gets rid of the -x on the other side and results with the new equation

3x - 5 = 7. Add 5 to both sides to get 3x = 12, then divide both sides by 3 to get x = 4.

You can check your work by plugging in 4 for x.

2(4) - 5 = -(4) + 7

8 - 5 = 3

3 = 3

Therefore, x is equal to 4.

Hope this helped! Have a good day!

User Onat Korucu
by
4.8k points
7 votes

Answer:

x = 4

Step-by-step explanation

2x−5+x=−x+7+x

3x−5=7

3x−5+5=7+5

3x=12

x=4

User Vmayorow
by
5.0k points