Question

For each value of u, determine whether it is a solution to - 23 = 5x + 7

Is it a solution?
Yes
No
X
5
?​

Answer 1

Be careful. A solution implies there (maybe) is only one solution.

We have

`</p><p>-23=5u+7 \\</p><p>-30=5u \\</p><p>u=-6</p><p>`

So yes u is a solution.