Which equation has no solution? (Circle your answer)

7v + 2 = 8v – 3
3x – 5 = 3x + 8 – x
4y + 5 = 4y – 6
7z + 6 = –7z – 5

Explain Bot Explain Bot answered
7 months ago

To determine which equation has no solution, we can start by simplifying each equation and checking if there is any contradiction or inconsistency.

Let's go through each equation:

1) 7v + 2 = 8v – 3

To simplify this equation, we will gather all the variables on one side and the constants on the other side:

7v - 8v = -3 - 2
-v = -5

Now, we can multiply both sides of the equation by -1 to isolate the variable v:

v = 5

So, this equation does have a solution.

2) 3x – 5 = 3x + 8 – x

Let's simplify this equation as well:

3x - 3x - x = 8 + 5
- x = 13

Multiplying both sides by -1 gives:

x = -13

Therefore, this equation does have a solution.

3) 4y + 5 = 4y – 6

Simplifying:

4y - 4y = -6 - 5
0 = -11

This equation leads to a contradiction (0 ≠ -11). Therefore, this equation has no solution.

4) 7z + 6 = –7z – 5

Simplifying:

7z + 7z = -5 - 6
14z = -11

Dividing both sides by 14, we find:

z = -11/14

Thus, this equation does have a solution.

In conclusion, the equation that has no solution is 4y + 5 = 4y – 6.

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