Question

I made a mistake while solving the inequality below. What mistake did I make? Explain what I should’ve done instead.

Answer 1

Answer:

Mistakes:

Used addition

Didn't flip inequality form

Corrections:

Divide each term

Instead of a positive value it should be negative

flip the direction of the inequality form

Step-by-step explanation:

$- 9x \div - 9 \leqslant 90 \div – 9$

cancel the common factor

$\times \leqslant 90 \div - 9$

Divide 90 by – 9

Answer is:

$\times \leqslant - 10$

Hope this helps!