Final answer:
The equations provided suggest relationships between angles in a parallelogram, but without more context or a visual representation, we cannot definitively determine which are true, except for option G, which indicates that consecutive angles are supplementary.
Step-by-step explanation:
The given information suggests that the question is regarding the properties of angles in a parallelogram. In a parallelogram, opposite angles are equal, and consecutive angles are supplementary (add up to 180 degrees). To determine which of the equations are true, we can use these properties. Without additional context or a diagram, however, it's difficult to ascertain exactly which angles these equations represent. Generally speaking:
- E. 3x = 2x + 8 suggests solving for x is possible by isolating the variable, resulting in x = 8.
- G. (7x – 8) + (3x – 12) = 180 is a typical way to represent consecutive angles of a parallelogram being supplementary.
- H. X = 20 is a statement of value, but without more information, we cannot verify it directly relates to the parallelogram.
Without the exact measures of the angles or additional information to establish a relationship among them, we cannot definitively confirm which statements are true, except for option G, which is a common property of parallelograms. Assuming that these angles are part of the same parallelogram and that there are no typos or errors in the question, we would need to perform algebraic manipulation or have more information to evaluate the truth of other equations.