11x+(-2)because you would add like terms which is -1x and 12x which is 11 then u do 2-4 which is -2
Answer: 68 degrees
Step-by-step explanation:
The sum of the angles in a triangle is 180 degrees.
Since we are given 2 of the angles, we can set up an equation.
Let the measure of angle G = g.
Then, g + 97 + 15 = 180
g + 112 = 180
g = 68
2. Addition and multiplication