Answer:
A) x = 12
Step-by-step explanation:
if its a right angle? then the angle in total is 90 degrees,
subtract the 35 from 90 to get 55 degrees,
4x + 7 = 55 solve this
4x = 48
x = 12

= -7 Multiply both sides by 10
x = -70
C. x = -70
Answer:

Step-by-step explanation:
can also be written as 

Simply to 
-OTHER METHOD-
can be simplified to 

Answer:
hi
Step-by-step explanation:
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