Question

Tell whether the value is a solution of the inequality d -7 < 12; d = 19

Answer 1

19 is not a solution.

Explanation:

when plugged into the inequality, 19-7 < 12, so 12<12.

12 is not less than 12, instead, it is equal to 12, so 19 is not a solution.

Answer 2

⋆ Answer:

d < 19

⋆ Step-by-step explanation:

We're asked to solve the following inequality :

⇒ d - 7 < 12

Recall that the whole idea of solving inequalities is finding the value of the variable by isolating it. So we'll find the value of d by isolating it on one side of the inequality.

Our inequality is d - 7 < 12. The next step is to add 7 to both sides :

d < 12 + 7

d < 19

Therefore, d < 19.

Now we need to check if the value d = 19 is a solution for the inequality.

→ 19 - 7 < 12

→ 12 < 12

Since we don't have a true statement, we know that d = 19 is not a solution.