Answer:
-42
Step-by-step explanation:
First move +5 to to the other side.
-7x=-16-5
-7x=-21
Then after this devide both sides by negative seven.
X=3
angles in a triangle add up to 180
so x = 180 - ( 70 + 90 ) = 20
this is because the two other angles in the both of the identical triangles are 70 and 90
Yeah its gonna be 18 square feet in wide and length and the area is gonna be 36 square feet
