Multiply both sides of the equation by 12. Move the variables to the left-hand side and change its sign. Move the constant to the left-hand side and change its sign. Collect like terms. Add the numbers. Divide both sides of the equation by 12.
1/2 x - 5= - 1/2 x + 19/4 6x -20= - 6x + 57 6x + 6x= 57 + 20 12x= 57 + 20 12x= 77 ANSWER x = 77/12 Alternative Form . x = 6 5/12, x= 6.416
The angle measures of any triangle = 180
adding 27 and 63. = 90
leaving 90 degrees for the remaining angle
therefore the triangle is a right triangle
by definition if a triangle has a 90 degree angle it's a right triangle
