Answer:x=9
Step-by-step explanation:so this is a isosceles triangle so that means the two sides are equal so set up the equation as 3x-7=20. And by moving the 7 over it will be 3x=27 and then you want you separate the x and to do that you have to divide x and 27 by 3 and you answer is x = 9
3m - 5m - 12 = 7m - 88 - 5
-2m - 12 = 7m - 88 - 5
-2m - 12 = 7m - 93
-12 = 7m - 93 + 2m
-12 = 9m - 93
-12 + 93 = 9m
81 = 9m
9 = m
hope that helps, God bless!
The solution is not the ones in the parenthesis.
your solution is, (0,16)