Question

find the measures of 2 supplementary angles if one angle is 12 more than 3 times the other find the measures of 2 supplementary angles if one angle is 12 more than 3 times the other @Mathematics

Answer 1

let the angles be a and b
a+b =180
also a=3b+12
=>3b+12+b=180
=>4b+12=180
=>b=42
=>a=138