Question 786190
Since supplementary angles form 180 degrees


Therefore the equation is…


180=5x+3+12x+7


180=17x+10


Then transpose it …


180-10=17x


170/17=17x/17


10=x


Now that you got the value of x, substitute it…


Angle 1 is 5(10)+3=53 degrees
Angle 2 is 12(10)+7=127 degrees



Eleanor