Question

If 3x + 18 and 2x + 25 are supplementary,find the value of x

Answer 1

Supplementry angle sum should be equal to 180

Answer 2

Answer:

27.4

Step-by-step explanation:

the sum of supplementary angles is 180 degree

thus,

3x+18+2x+25=180

3x+2x+18+25=180

5x+43=180

5x=180-43

5x=137

x=137/5

x=27.4