Question

If (3x - 20) and (x +20) are supplementary angles find the angles

Answer 1

heya mate ☺

Sum of two supplementary angles are 180 degree.

So,

$(3x - 20) + (x + 20) = 180 \\ = > 3x - 20 + x + 20 = 180 \\ = > 4x = 180 \\ = > x = 180 \div 4 \\ = > x = 45$

♨ hope it helps u ♨

Answer 2

(3x−20)+(x+20)=180

=>3x−20+x+20=180

=>4x=180

=>x=180÷4

=>x=45

hope this helps you ☺