Question

Solve.
5(a – 1) – 15 = 3(a + 2) + 4
Enter your answer in the box.
X
a = 15

Answer 1

Solve :

5 (a - 1) - 15 = 3 (a + 2) + 4

Solution :

`\sf \dashrightarrow \: 5 (a - 1) - 15 = 3 (a + 2) + 4`

`\sf \dashrightarrow \: 5 * a - 5 * 1 - 15 = 3 * a + 3 * 2 + 4`

`\sf \dashrightarrow \: 5 a - 5 - 15 = 3 a + 6 + 4`

`\sf\dashrightarrow \: 5 a - 20 = 3 a + 10`

`\sf\dashrightarrow \: 5 a - 20 - 3a - 10 = 0`

`\sf\dashrightarrow \: 2 a - 30 = 0`

`\sf\dashrightarrow \: 2 a = 30`

`\sf\dashrightarrow \: a = \cancel(30)/(2)`

`\sf\dashrightarrow \: a = 15`

`\Large \underline{\boxed{\tt{a = 15 }}}`

Hence, value of a = 15.