Question

two supplementry angles are (3x+10) and (2x-30) find the value of x and find the measure of the two angles​

Answer 1

Answer:

$(3x + 10) \times (2x - 30) = 6x {}^{2} - 90 x+ 20x - 300 = 6x {}^{2} - 110x - 300$

Answer 2

Answer:

(3x+10)+(2x-30)=180

3x+10+2x-30=180

3x+2x+10-30=180

5x-20=180

5x=180+20

5x=200

X=200/5

X=40

therefore, the value of X is 40.

The two supplemenry angles are

(I) (3x+10)

=3(40)+10

=120+10

=130

(ii) (2x-30)

=2(40)-30

=80-30

=50

Therefore, the measure of the two angles are 130 degree and 50 degree.

HOPE THIS HELPS YOU