Question

Helpppppppp here plz

Answer 1

Equation:

123 = x + 12 + x + 3(12 + x)

Solution:

x = 15

Explanation:

Jamil: x

Kiera: 12 + x

Luther: 3(12 + x)

Total: 123 badges

Equation:

123 = x + 12 + x + 3(12 + x)

Solve:

123 = x + 12 + x + 3(12 + x)

123 = x + 12 + x + 36 + 3x

123 = 5x + 48

-48 -48

75 = 5x

/5 /5

15 = x

Therefore, the value of x is 15.

Answer 2

x + x+12 + 3(x+12) = 123

x = 15

Explanation:

Jamil : x

Kiera : x+12

Luther : 3 ( x+12)

x + x+12 + 3(x+12) = 123

Distribute

x + x+12 + 3x+36 = 123

Combine like terms

5x+ 48 = 123

Subtract 48 from each side

5x+48-48 = 123-48

5x =75

Divide by 5

5x/5 = 75/5

x = 15