Question

if 4a+20=5b+30=180 then the supplement of a and b are what ​

Answer 1

Answer:

4a+ 20- 30-5b=180

4a -10-5b= 180

4a-5b= 180- 10

4a-5b= 170

Answer 2

a= 40

b= 30

Step-by-step explanation:

4a + 20 = 180

4a= 160

a = 160/4

40

5b+30 =180

5b=150

b= 30

also if this question is to find supplementary angles of a and b

1.180-40 = 140 ; of a

2.180-30=150 ; of b