It is a vertical change.
Hope this helped.
Essentially, you’re solving/isolating the variable you want to be the subject. So, since we want x as the subject, we’ll solve for x.
For example. let’s take the first one. We want to make x the subject. So, we’ll solve for x.
x+h=4
Subtract h from both sides
x+h-h=4-h
The h’s cancel on the left side, so we’re left with only an h on the other side.
x=4-h
The variable x is now the subject, as the equation is arranged so that the variable x equals something.
Answer:
x=136, y=44
Step-by-step explanation:
Opposite angles in parallelograms are equal.
Therefore y=44.
When you add all the angles in a quadrilateral, you always get 360.
Therefore:
2x+2(44)=360
2x=360-88
x=272/2
x=136
