What is the value of x?
6
7
8
9

7

Step-by-step explanation:

The parallel side of the equation is 38. Which means the side of the equation must be equal to that. Thats how parallelograms work.

So the equation 5x+3 can be broken down like this:

5(x)+3

5(7)+3 fill in number where variable was

5×7= 35 so the equation becomes

35+3 = 38

38=38

in the future just plug in each answer (the numbers) into the equation and use the process of elimation to find the answer :)

4x and 6y

im not sure though

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: