Question

Find the value of x

(7x+12)
(12x-28)
(9y-77)

Answer 1

`\implies`The value of x = 8

Explanation:

As
`\bf{l}\parallel{m}`

`\bf \longrightarrow(7x + 12) \degree = (12x - 28) \degree \\ \\ \bf \longrightarrow 12 + 28 = 12x - 7x \\ \\ \bf \longrightarrow40 = 5x \\ \\ \bf \longrightarrow x = { \cancel{(40)/(5) }} \\ \\ \bf \longrightarrow x = 8`

So, the answer is x = 8.