Question

Write an equation and use it to solve for x.

Options:

x = 10 5/9
x = 9
x = 9 4/9
x = 27

Answer 1

3x+2 + 6x+7 + 90 = 180

x=9

Explanation:

Since JKL is a straight line, it equals 180

JKM + MKN + NKL = 180

3x+2 + 6x+7 + 90 = 180

Combine like terms

9x+99 = 180

Subtract 99 from each side

9x+99-99= 180-99

9x =81

Divide each side by 9

9x/9 = 81/9

x=9