Question

measures of two supplementary angles are (x+20)° and (4x+40)° Find the 'x'​

Answer 1

Answer:

x

$x + 20 + 40 + 4x = 90 \\ 5x + 60 = 90 \\ 5x = 30 \\ x = 6$

Answer 2

Step-by-step explanation:

(x+20) + (4x+40) = 180

5x + 40x + 80x+800 =180

125x +800=180

125x = 180-800

125x = -620

x= -620/-125

x= 124/25