Question 343426
BY DEFINITION THE SUM OF COMPLEMENTARY ANGLES IS 90 DEGREES!
{{{C[1]+C[2]=90}}} 
PROBLEM STATES! {{{C[2]}}} IS {{{3*C[1]+ 2}}}
SUBSITUTE
{{{C[1]+(3*C[1]+2) =90}}}
COMBINE
{{{4C[1]+2 =90}}}
SOLVE:
SUBTRACT 2 FROM EACH SIDE OF EQUATION
{{{4C[1] =88}}}
DIVIDE EACH SIDE OF THE EQUATION BY 4
{{{C[1]=22}}}
FIND C[2] = (3*22+2)!!!
{{{C[2]=68}}}

CHECK YOUR ANSWER!  22 + 68 = 90