Question

how to solve 18=40-3x

Answer 1

Q. Evaluate the value of x »

18 = 40 - 3x

⇒ 40 - 3x = 18

⇒ - 3x = 18 - 40

⇒ - 3x = - 22

⇒ 3x = 22

⇒ x = 22 / 3 ≈ 7.33...

Hence, the value of x = 22 / 3

Some things to know »

❖ Transposition » The process of transferring a number from one side to another side and change it's sign.

e.g.

a - b = c ⇒ a = c + b

✪ Be Brainly ✪

Answer 2

Answer :


$given \: equation \: = > \: 18 = 40 - 3x \\ \\ = > \: 3x + 40 = 18 \\ \\ = > \: 3x = 40 - 18 \\ \\ = > \: 3x = 22 \\ \\ = > \: x = \frac{22}{3} \\ \\ = > \: x = 7.3333...$



Hope it would help you