Question

Solve each equation

Hint: y < 10
7y + 7 = 56.
42 - 6y = 6,
(y + 1){2} = 9,
1 + 72/y = 10,

Answer 1

1. y = 7

2. y = 6

3. y = 7/2

4. y = 8

Explanation:

I searched it up and found the answer.

Answer 2

Let's solve each equation one by one :

• 7y + 7 = 56

➝ 7y + 7 = 56

➝ 7y = 56 - 7

➝ 7y = 49

➝ y = 49 / 7

➝ y = 7

• 42 - 6y = 6

➝ 42 - 6y = 6

➝ - 6y = 6 - 42

➝ - 6y = - 36

➝ y = -36 / - 6

➝ y = 6

• ( y + 1 )² = 9

➝ ( y + 1 )² = 9

➝ y + 1 = √ 9

➝ y + 1 = 3

➝ y = 3 - 1

➝ y = 2

• 1 + 72 / y = 10

➝ 1 + 72 / y = 10

➝ 72 / y = 10 - 1

➝ 72 / y = 9

➝ 72 = 9y

➝ 9y = 72

➝ y = 72 / 9

➝ y = 8