Question

Which of these numbers is a solution for 12 - X < 7​

Answer 1

Answer:

x > 5

Step-by-step explanation:

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To solve 12 - X < 7​, add x to both sides, so that x is positive:

12 < x + 7

Now subtract 7 from both sides, to isolate x:

5 < x or x > 5

Answer 2

Answer:

x > 5

Step-by-step explanation:

$12 - x < 7$

i) move constants to the right-hand side and change its sign

$- x < 7 - 12$

ii) calculate the difference

$- x < - 5$

iii) change the signs on both sides of the inequality and flip the inequality sign

$x > 5$