a + b = x 
c + b = x 
Subtracting  from : a - c = 0
I'm more than abit rusty and am lost!
I need to use the transitive property to solve this problem?
M<1+ M<2= 180 degrees
M<3+ M<2= 180 degrees
Any help would be much appreciated with detailed instructions explaining steps.
(< is suppose to be acute angle sign.. I dont know how to make one on here.)
Thanks so much
when I have <1+<2=180 Am I trying to find a sum thats divided by 3 to =180? (60)
?? Then I have <3+ <2=180 So I"m applying 60x3(180) and 60x2(120) then adding 120 and 180=300 ?? Am I working the steps wrong??
I haven't taken any math since the 80's and don't remeber any of the algebra
Then to get to the last line, use the subtraction property.